Even in the best-managed flocks, chickens can become sick or injured from time to time. While good nutrition, clean housing, and proper management go a long way toward preventing many health problems, it’s important to know how to recognize common illnesses and respond quickly when they do occur. In this guide, we’ll cover some of the most common chicken illnesses and how to treat them effectively.

What to Know Before Treating a Sick Chicken

It happens to everyone at some point or another. You go and start your chicken flock with a few chickens… Everything in life is happy and grand. And then one day, you walk outside to a dead bird, a sick bird, or a “what the heck is wrong with it” bird. That’s when the death emotion sinks in, and you think you’re a failure at chicken keeping.

Prey Instinct

One of the most important things to understand is that chickens are prey animals. They instinctively hide signs of illness or injury for as long as possible, which means they can be quite sick before obvious symptoms appear. That’s why regular flock health checks are so important. If possible, give each bird a quick once-over every week or two. Larger flocks may make that unrealistic, so even a thorough monthly health check can help you catch problems before they become serious.

Health Management Approach

Before you begin treating a sick chicken, it’s also helpful to decide on your overall approach to flock health. Some homesteaders prefer holistic remedies, others rely on conventional veterinary treatments, and many use a combination of both.

Holistic or Conventional

On our homestead, we start with holistic methods whenever possible. If those don’t work, we may choose conventional treatments or, in some cases, humanely cull the bird. Every homestead is different, and sometimes the most practical decision is based on both the animal’s quality of life and the cost of treatment. While we keep basic supplies on hand for common health issues, we also recognize that not every illness or injury can (or should) be treated.

KEY TAKEAWAYS

• Chickens are prey animals that can be sick or injured long before showing visible symptoms, making regular monthly or weekly health checks essential for early detection
• Prevention of chicken illnesses centers on five core practices: feeding a nutrient-rich diet, adding supplements like garlic, oregano, turmeric, and DE to feed, providing apple cider vinegar in water for gut health, offering fresh herbs and foraged snacks, and maintaining safe coop and foraging environments.
• Most common chicken ailments, including lice, mites, scaly leg mites, respiratory irritation, sour crop, and bumblefoot, can be treated effectively using holistic methods such as wood ash, diatomaceous earth, essential oils, and herbal supplements rather than chemical interventions.
• Mycoplasma Gallisepticum and Mycoplasma Synoviae are highly contagious respiratory bacteria that require aggressive treatment with oregano, turmeric, and garlic, along with strict quarantine protocols for new birds to prevent flock-wide infection.
• On a working homestead, culling may be the most economically rational decision when treatment costs exceed the value of the bird or when infectious diseases like Infectious Coryza threaten the entire flock.

Preventing Chicken Illnesses

While it’s important to know how to treat common chicken illnesses, prevention should always be your first line of defense. A healthy, well-managed flock is far less likely to experience serious health problems, and many common illnesses can be minimized—or even avoided altogether—with good nutrition, clean housing, and routine care.

So, how do you prevent chicken illnesses?

Feed Chickens A Balanced Diet

A quality feed formulated for your chickens’ age and purpose provides the nutrients they need to maintain strong immune systems and overall health. If it fits your budget, choose a non-GMO or organic feed. Fresh, clean water should always be available, and healthy treats can be offered in moderation to provide additional variety and nutrition.

Add Beneficial Herbs and Supplements

Many homesteaders also choose to support flock health with natural herbs and supplements. While these shouldn’t replace good nutrition or veterinary care when needed, they can be a valuable part of an overall wellness routine.

Some popular options include:

• Garlic: Traditionally used to support immune health and overall wellness.
• Oregano: Contains natural compounds that may help support respiratory and immune health.
• Turmeric: Valued for its anti-inflammatory properties and also aids in aches and pains, purifies blood, aids respiratory health, and strengthens the immune system.
• Black Oil Sunflower Seeds (BOSS): A nutritious treat that provides healthy fats, protein, vitamin E, and additional nutrients, especially during colder months.
• Diatomaceous Earth (DE): Food-grade DEcan be used  in and around the coop as part of a pest and parasite management routine.

If we had to choose just a few staples for our flock, garlic, oregano, and turmeric would be at the top of the list for supporting overall health and helping keep our chickens in the best condition possible.

Feed Supplement Dosing Quick Reference

Supplement	Primary Benefit	Recommended Dose per 5 lbs Feed
Garlic Powder	Immune health, antibacterial	1-2 tablespoons
Oregano (dried)	Natural antibiotic	1-2 tablespoons
Turmeric	Anti-inflammatory, immune support	1 tablespoon
Diatomaceous Earth	Natural wormer	2-3 tablespoons
BOSS (Black Oil Sunflower Seeds)	Protein, digestion support	1/4 cup

Add Apple Cider Vinegar to their Water

Many chicken keepers like to add raw, unfiltered apple cider vinegar (ACV) to their flock’s water from time to time to support digestive and gut health. ACV helps alkalize the body in any living being. It’s filled with wonderful probiotics and has anti-fungal properties. While it’s not a cure-all, it can be a helpful addition to an overall wellness routine. If you choose to use ACV, be sure your chickens always have access to plenty of fresh, clean water, especially during hot weather, as some birds may drink less if they dislike the taste.

Offer Fresh Herbs and Nutritious Treats

Fresh herbs and homegrown treats can be a wonderful way to support your flock’s overall health while adding variety to their diet. Whether you grow them yourself, forage, or purchase dried herbs, many homesteaders regularly offer options such as garlic, oregano, thyme, marigolds, dandelions, violets, chickweed, red raspberry leaf, dried elderberries, and autumn olive berries. You can order large bags of dried herbs online here.

Pumpkin seeds and diatomaceous earth (DE) are other supplemental options that many homesteaders include as part of a varied diet for parasite control and overall health.

Keep the Coop and Run Safe

Ultimately, some things happen because of unsafe living areas. Whether it’s a predator attack, or a hen getting her leg caught in some contraption—do a check on your barn, coop, and foraging areas often. Rid these areas of any potential safety hazards for your flock and yourself.

How To Treat Common Chicken Illnesses

Good flock management can prevent many health problems, but even the best-kept chickens can become sick or injured. If you’re reading this because one of your birds isn’t acting like itself, don’t panic. Identifying the problem early and choosing the appropriate treatment can often make all the difference.

Below are some of the most common chicken illnesses and health issues, along with their symptoms and both natural and conventional treatment options.

Lice and mites are external parasites that feed on a chicken’s skin, feathers, or blood. Left untreated, heavy infestations can cause anemia, reduced egg production, weight loss, and, in severe cases, death.

Lice and Mites

We first dealt with lice after unknowingly bringing home infested chickens. It taught us just how quickly external parasites can spread through an entire flock.  I made the mistake of treating them chemically, and almost ended up in the hospital myself. After their first treatment, I learned of a much better way to continue treating them (as they need to be treated for an entire month).

Lice and mites transmit from other birds. However, if left long enough, can become an epidemic and kill your chickens by feeding on their blood supply. It takes awhile to get to that point, which is how we knew the chickens had lice before they arrived here (and none of my other flock had them, but had to be treated still). Should you find yourself with an anemic chicken, raw red meat in his/her diet is essential to get their iron levels back up.

Symptoms

• Excessive scratching
• Feather loss
• Dirty vent feathers
• Pale comb and wattles
• Reduced egg production
• Restlessness at night
• Visible insects or egg clusters around feather shafts
• Weakness from anemia in severe infestations
• Reduced appetite
• Weight loss (advanced cases)

Natural Treatment

• Dust birds with wood ash or food-grade DE, avoiding the eyes and respiratory tract.
• Provide a fresh dust bathing area.
• Remove all bedding.
• Thoroughly clean and disinfect the coop.
• Replace bedding.
• Repeat treatments weekly for four weeks to interrupt the parasite life cycle.

Conventional Treatment

Always follow label directions for poultry and observe any egg withdrawal periods listed by the manufacturer.

• Permethrin poultry dust
• Elector PSP (where available)

Treatment Timeline

Week	Treatment	Purpose
Week 1	Dust birds and clean coop	Kills active adult parasites
Week 2	Maintain dust bath and inspect birds	Catches newly hatched nymphs
Week 3	Second individual dusting treatment	Eliminates second generation hatch
Week 4	Final dusting + coop refresh	Ensures complete elimination

Prevention Tip: Quarantine all new chickens for at least 30 days before introducing them to your flock. Most lice and mite infestations begin when new birds are added without a quarantine period.

Scaly Leg Mites

Scaly leg mites are tiny parasites that burrow beneath the scales on a chicken’s legs and feet, causing irritation, thickened scales, and discomfort. They spread through direct contact with infested birds or contaminated roosts and housing. Left untreated, severe infestations can make walking and perching painful.

Symptoms

• Raised or lifted leg scales
• Thick, crusty legs
• Swollen toes or feet
• Limping
• Difficulty perching
• Pain or sensitivity when walking

Natural Treatment

Many home remedies for scaly leg mites circulate online, but avoid using harsh chemicals such as gasoline or kerosene. These can seriously injure your chickens.

Instead:

• Soak the affected legs in warm water to soften the scales.
• Gently scrub the legs with a soft toothbrush to loosen dead scales and debris.
• Dry the legs thoroughly.
• Coat the legs and feet with a thick layer of petroleum jelly, coconut oil, neem oil, or olive oil. These work by suffocating the mites beneath the scales.
• Reapply the oil once or twice a week for at least four weeks to eliminate newly hatched mites.
• Provide a dust bathing area with wood ash (and, if desired, food-grade DE) as part of your flock’s overall parasite management routine.
• Thoroughly clean the coop, replace all bedding, and pay special attention to roosts, where mites can spread between birds.

Conventional Treatment

• Permethrin spray or poultry dust (used according to the manufacturer’s directions)
• Ivermectin is sometimes used off-label under veterinary guidance in severe cases

Treatment Timeline

Week	Treatment	Purpose
Week 1	Soak legs, gently scrub, apply oil, and clean the coop	Kills active mites and begins softening damaged scales
Week 2	Reapply oil and inspect leg scales	Targets newly hatched mites
Week 3	Continue oil treatments and monitor healing	Interrupts the mite life cycle
Week 4	Final treatment and coop refresh	Ensures mites have been eliminated while healthy scales continue to grow

Prevention Tip: Check your flock’s legs during routine health inspections, especially when handling birds. Catching scaly leg mites early makes treatment much easier and helps prevent the parasites from spreading to the rest of your flock.

Coccidiosis

Coccidiosis is a common intestinal disease caused by microscopic parasites (coccidia) that damage the lining of a chicken’s digestive tract. It most often affects young chicks, but adult birds can become ill as well, especially during times of stress or in damp, unsanitary conditions. If left untreated, coccidiosis can quickly lead to dehydration, severe illness, and death.

Symptoms

• Bloody droppings
• Watery diarrhea
• Drooping wings
• Hunched posture
• Loss of appetite
• Weight loss
• Weakness or lethargy
• Pale comb
• Rapid dehydration
• Sudden death, especially in young chicks

Natural Treatment

Supportive care is especially important when treating coccidiosis. In mild cases, many homesteaders choose to use herbal remedies while closely monitoring their flock.

Helpful supportive measures include:

• Offer plenty of fresh water with added electrolytes to help prevent dehydration.
• Provide probiotics to support gut health during recovery.
• Use herbal products, such as Kocci Free & Vibactra Plus, according to the manufacturer’s directions. Many homesteaders use it during treatment and as part of their ongoing flock health routine.
• Keep bedding clean and dry to reduce the spread of coccidia.
• Isolate sick birds whenever possible to reduce contamination of the rest of the flock.

Conventional Treatment

• Amprolium (Corid®) is one of the most commonly used treatments for coccidiosis in poultry and is often recommended when birds show significant symptoms.
• Follow all label directions carefully and provide supportive care throughout recovery.

Recovery Timeline

Stage	Action	Purpose
Day 1	Begin treatment immediately and provide electrolytes	Reduce dehydration and slow disease progression
Days 2–5	Continue treatment, monitor droppings, and encourage eating and drinking	Support recovery while reducing intestinal damage
Week 2	Replace bedding, thoroughly clean the coop, and continue monitoring the flock	Help reduce reinfection and ensure birds are recovering

Prevention Tip: Coccidia thrive in wet, dirty conditions. Keeping bedding dry, avoiding overcrowding, providing good ventilation, and cleaning waterers regularly are some of the best ways to reduce the risk of coccidiosis in your flock.

Respiratory Irritation

Not every sneeze or wheeze means your chickens have a serious illness. Chickens don’t catch the common cold like humans do, but their respiratory systems are very sensitive to dust, ammonia, poor ventilation, mold, and seasonal pollen. Mild respiratory irritation often improves once the environmental cause is addressed.

Symptoms

• Sneezing
• Occasional wheezing
• Clear nostrils
• No facial swelling
• Normal appetite
• Active, alert behavior

Natural Treatment

If your chickens appear healthy aside from occasional sneezing, improving their environment is often all that’s needed.

• Thoroughly clean the coop and remove dusty bedding.
• Replace bedding with a low-dust option, such as cardboard coop bedding or large-flake pine shavings.
• Increase ventilation while avoiding direct drafts on your birds.
• Remove wet bedding to reduce ammonia buildup.
• Keep feeders and waterers clean to minimize dust and debris.
• Continue monitoring your flock for any worsening symptoms.

Conventional Treatment

Respiratory irritation itself typically doesn’t require medication. However, if symptoms persist or worsen, consult a veterinarian to rule out infectious respiratory diseases, which may require prescription medications or antibiotics.

Recovery Timeline

Timeframe	Action	Purpose
Day 1	Clean the coop, replace bedding, and improve ventilation	Remove the source of irritation
Days 2–3	Monitor birds for improvement	Mild irritation often resolves quickly once air quality improves
After 3–5 Days	If symptoms worsen or new symptoms develop, seek veterinary guidance	Rule out infectious respiratory disease

Prevention Tip: Good ventilation is one of the best ways to protect your flock’s respiratory health. Keep bedding clean and dry, minimize dust whenever possible, and regularly remove droppings to prevent ammonia from building up inside the coop.

Mycoplasma Gallisepticum (MG) and Mycoplasma Synoviae (MS)

Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) are highly contagious bacterial diseases that affect a chicken’s respiratory system and, in the case of MS, can also affect the joints. They spread easily through direct contact with infected birds, contaminated equipment, clothing, shoes, and even from hens to chicks through eggs.

We encountered what we believe was MG shortly after we began raising chickens. Thankfully, the bird had been quarantined and was on our property for less than 48 hours. That experience reinforced one of the most important rules of flock management:

Always quarantine new chickens before introducing them to your flock.

Symptoms

• Wheezing
• Sneezing
• Gasping for air
• Foamy eyes
• Puffy face or swollen sinuses
• Nasal discharge
• Rattling or noisy breathing
• Swollen joints (more common with MS)
• Lethargy
• Weight loss
• Reduced egg production

Natural Supportive Care

MG and MS are respiratory bacteria that can seriously sicken and kill your entire flock. It is extremely contagious, and can even be spread by clothing and shoes. Aggressive treatment is essential. 

Many homesteaders choose to provide supportive care that includes:

• Oregano added to feed or water
• Garlic mixed into feed
• Turmeric to support overall health
• Electrolytes to encourage hydration
• Warm, dry housing with excellent ventilation
• Reduced stress
• Isolation of visibly sick birds whenever possible

Continue providing supportive care while closely monitoring the entire flock, as some infected birds may not show symptoms immediately.

Conventional Treatment

There is currently no known cure for MG or MS. Infected birds often become lifelong carriers, even if they recover and appear healthy.

Veterinarians may prescribe antibiotics such as tylosin or tetracyclines to reduce symptoms and help control outbreaks, but these treatments generally do not eliminate the bacteria from the flock.

Because these diseases are highly contagious, many poultry keepers choose to permanently isolate or humanely cull infected birds to protect the rest of their flock.

MG/MS Aggressive Treatment Protocol

Supplement	Delivery Method	Duration
Oregano	Feed AND water simultaneously	Until symptoms resolve + 2 weeks
Turmeric	Mixed into daily feed	Until symptoms resolve + 2 weeks
Garlic	Powdered in feed, fresh cloves as treat	Until symptoms resolve + 2 weeks
Quarantine	Separate infected birds if possible	Entire treatment period
Biosecurity Hold	No farm visitors, no selling birds/eggs	4 weeks after all symptoms clear

Biosecurity Tip: If MG or MS is suspected, avoid visiting other poultry farms, disinfect boots and equipment, and do not sell or give away birds or hatching eggs until you’ve confirmed your flock’s health status. Strong biosecurity practices are the best defense against spreading these diseases.

Infectious Coryza

Infectious coryza is a highly contagious bacterial respiratory disease that spreads quickly through backyard and commercial flocks. It primarily affects the upper respiratory tract and can cause severe swelling of the face and sinuses, making it one of the more recognizable chicken diseases. Even birds that recover may continue to carry the bacteria and infect other chickens.

Symptoms

• Swollen face or sinuses
• Swollen wattles
• Thick nasal discharge
• Foul-smelling nasal discharge
• Puffy or swollen eyes
• Sneezing
• Difficulty breathing
• Reduced appetite
• Drop in egg production
• Lethargy

Not sure whether your chicken has respiratory irritation, MG/MS, or infectious coryza? Swelling of the face, foul-smelling nasal discharge, and puffy eyes are much more suggestive of infectious coryza than simple environmental irritation.

Natural Supportive Care

While there is no natural cure for infectious coryza, supportive care can help keep affected birds comfortable.

• Isolate sick birds immediately.
• Provide fresh water with electrolytes to encourage hydration.
• Offer high-quality feed and supportive herbs, such as oregano, garlic, and turmeric, as part of your flock’s overall care.
• Keep the coop warm, clean, dry, and well-ventilated.
• Reduce stress as much as possible while birds recover.

Conventional Treatment

• Antibiotics prescribed by a veterinarian may help reduce the severity of symptoms and limit the spread of secondary bacterial infections, but they do not eliminate the disease from carrier birds.
• Because recovered birds often remain lifelong carriers, some flock owners choose to cull affected birds to protect the health of the rest of the flock.

Recovery & Biosecurity

Step	Action	Purpose
Immediately	Isolate sick birds	Reduce transmission to the rest of the flock
During Illness	Provide supportive care and follow veterinary recommendations	Help birds recover and reduce complications
After the Outbreak	Thoroughly clean and disinfect housing, feeders, and equipment	Reduce the risk of spreading disease to future birds

Prevention Tip: The best defense against infectious coryza is strong biosecurity. Quarantine all new chickens for at least 30 days, avoid sharing equipment between flocks, and wash or disinfect boots, clothing, and tools after visiting other poultry owners. Because recovered birds can remain carriers, many flock owners choose not to introduce them back into a disease-free breeding flock.

Sour Crop

Sour crop is a condition in which food remains in the crop too long and begins to ferment, often allowing yeast to overgrow. It can develop after an impacted crop prevents food from moving normally through the digestive tract, but it can also occur on its own. Early treatment gives your chicken the best chance of a full recovery.

Symptoms

• Squishy or fluid-filled crop
• Sour or fermented odor from the beak
• Bad breath
• Crop that doesn’t empty overnight
• Regurgitation
• Reduced appetite
• Weight loss
• Lethargy

Natural Supportive Care

If you suspect sour crop, begin supportive care as soon as possible.

• Withhold feed overnight (or for 12–24 hours if appropriate), while ensuring your chicken has access to fresh water.
• Gently massage the crop several times a day to help loosen its contents. Avoid squeezing forcefully.
• After the crop begins emptying normally, gradually reintroduce soft, easily digestible foods along with probiotics to help restore healthy gut flora.
• Some homesteaders also administer small amounts of raw, unfiltered apple cider vinegar or olive oil as part of their supportive care routine, though evidence for their effectiveness is largely anecdotal.
• Continue monitoring the crop each morning to make sure it is emptying completely before the bird eats again.

Important: Avoid holding a chicken upside down in an attempt to empty the crop. This can cause the bird to inhale crop contents into its lungs (aspiration), which can be life-threatening.

Conventional Treatment

• If the crop remains full, repeatedly refills, or the bird continues to decline, consult a poultry veterinarian.
• Severe yeast infections may require antifungal medication.
• An impacted crop that cannot be cleared with supportive care may require veterinary treatment or surgery.

Recovery Timeline

Step	Action	Purpose
Day 1	Withhold feed temporarily, provide water, and gently massage the crop. Add ACV and olive oil to the crop.	Encourage the crop to begin emptying
Days 2–3	Continue monitoring the crop each morning and reintroduce soft foods gradually	Support normal digestion and recovery
If Symptoms Persist	Seek veterinary care	Rule out impaction or severe fungal infection requiring medical treatment

Prevention Tip: Offer an appropriate diet, provide free-choice grit to birds that need it, avoid long, fibrous grasses or tough plant material, and check your flock regularly for crops that fail to empty overnight.

Impacted Crop

An impacted crop is different from sour crop. Instead of fermented food and yeast overgrowth, an impacted crop occurs when food or other material becomes lodged in the crop and cannot pass through the digestive tract. Long grass, straw, excessive fibrous material, or foreign objects are common causes. If left untreated, an impacted crop can eventually lead to sour crop.

Symptoms

• Hard, firm crop
• Crop that remains full first thing in the morning
• Loss of appetite
• Weight loss
• Lethargy
• Little or no droppings
• Difficulty swallowing in severe cases

Natural Supportive Care

Early intervention offers the best chance of resolving a mild impaction.

• Ensure your chicken has access to plenty of fresh water to prevent dehydration.
• Gently massage the crop several times a day to help loosen the impacted material. Avoid squeezing too forcefully.
• Temporarily withhold solid feed if appropriate while monitoring the crop, then gradually reintroduce soft, easily digestible foods once it begins emptying normally.
• Some homesteaders administer a small amount of olive or coconut oil as part of their supportive care routine, though evidence for its effectiveness is largely anecdotal.
• Check the crop each morning before feeding to see if it has emptied overnight.

Conventional Treatment

• If the crop remains hard and full despite supportive care, consult a poultry veterinarian.
• Severe impactions may require professional flushing or surgical removal of the blockage.
• Continue monitoring the bird after recovery to ensure normal crop function has returned.

Recovery Timeline

Timeframe	Action	Purpose
Day 1	Provide water, gently massage the crop, and monitor closely	Encourage the blockage to begin moving
Days 2–3	Continue supportive care and check whether the crop empties overnight	Assess improvement and digestive function
If Symptoms Persist	Seek veterinary care	Remove the obstruction before complications develop

Prevention Tip: Prevent crop impactions by providing appropriate grit (when needed), avoiding access to long, tough grasses or baling twine, offering a balanced diet, and checking your flock regularly for crops that remain full overnight. Catching an impaction early can help prevent it from progressing to sour crop.

Bumblefoot

Bumblefoot is one of the most common foot problems in backyard chickens. It develops when bacteria enter the foot through a small cut, puncture wound, splinter, or thorn, causing a localized infection beneath the skin. If left untreated, the infection can spread deeper into the foot and, in severe cases, throughout the body.

Symptoms

• Black scab on the bottom of the foot
• Swollen foot or toes
• Limping
• Reluctance to walk or perch
• Warm, inflamed foot
• Pus or a firm core beneath the scab

Natural Supportive Care

Early cases of bumblefoot often respond well to supportive care.

• Soak the affected foot in warm water with Epsom salt to soften the tissue and help reduce swelling.
• Keep the foot clean and dry between treatments.
• Apply a clean, padded bandage to protect the foot while it heals.
• Some homesteaders choose to apply properly diluted tea tree oil or oregano essential oil (mixed with a carrier oil) beneath the bandage because of their traditional antimicrobial properties.
• Replace the bandage daily and monitor the foot for improvement.
• Keep bedding clean and dry to reduce exposure to bacteria while the wound heals.

Conventional Treatment

• Advanced cases may require removal of the infected core by a veterinarian or an experienced poultry keeper.
• Your veterinarian may recommend antibiotics if the infection has spread beyond the foot.
• Continue bandaging until the wound has healed completely.

Recovery Timeline

Timeframe	Treatment	Purpose
Days 1–3	Daily Epsom salt soaks, clean bandage, and supportive care	Reduce swelling and begin healing
Days 4–7	Continue daily bandage changes and monitor the wound	Encourage drainage and tissue repair
Days 8–14	Continue treatment until swelling resolves and walking improves	Allow the foot to heal completely
After Healing	Monitor regularly for recurrence	Catch any returning infection early

Prevention Tip: Preventing bumblefoot starts with good coop maintenance. Remove sharp objects from the run, provide smooth, appropriately sized roosts, keep bedding clean and dry, and inspect your chickens’ feet during routine health checks, especially if you notice a bird limping.

Internal Worms

Internal worms are common parasites that can affect backyard chickens, especially those that free-range or spend a lot of time on the same ground. A small parasite load is often tolerated by healthy birds, but heavy infestations can lead to poor health, reduced egg production, weight loss, and, in severe cases, death.

Symptoms

• Weight loss despite a normal appetite
• Pale comb or wattles
• Diarrhea or loose droppings
• Reduced egg production
• Worms visible in droppings
• Weakness or lethargy
• Poor body condition
• Stunted growth in young birds

Natural Supportive Care

Many homesteaders focus on supporting overall flock health while reducing parasite exposure.

• Rotate pasture or ranging areas whenever possible to reduce parasite buildup.
• Keep bedding clean and dry.
• Remove droppings regularly from the coop and run.
• Provide a balanced diet and fresh, clean water.
• Some flock owners offer herbs such as garlic, oregano, pumpkin seeds, and thyme as part of their overall flock wellness routine, although these should not be relied upon to eliminate heavy worm infestations. Check out this homemade anti-parasitic tincture recipe.
• If worms are suspected, consider having a veterinarian perform a fecal examination to determine whether treatment is needed.

Conventional Treatment

• A fecal examination is the most reliable way to confirm a worm infestation and identify the type of parasite present.
• When a significant worm burden is confirmed, your veterinarian may recommend an appropriate poultry dewormer.
• Follow all label directions carefully, including any egg or meat withdrawal periods.
• Continue practicing good sanitation and pasture management to help prevent reinfection.

Management Timeline

Stage	Treatment	Purpose
First Signs	Evaluate birds and collect a fecal sample if possible	Confirm whether worms are present
During Treatment	Administer dewormer (if needed), provide supportive care, and keep housing clean	Eliminate parasites and support recovery
After Treatment	Recheck birds, clean the coop, and rotate pasture if possible	Reduce the chance of reinfestation

Prevention Tip: Good pasture management is one of the best ways to reduce internal parasites. Rotating grazing areas, avoiding overcrowding, keeping coops clean, and monitoring your flock’s body condition can help prevent heavy worm infestations before they become a problem.

Egg Binding

Egg binding occurs when a hen is unable to pass an egg through her reproductive tract. It is considered an emergency because the trapped egg can put pressure on internal organs and quickly weaken the bird. Prompt treatment gives your hen the best chance of a full recovery.

Symptoms

• Standing in a “penguin” stance
• Straining to lay an egg
• Tail pumping
• Sitting in the nesting box for extended periods without laying
• Swollen or distended abdomen
• Lethargy or weakness
• Loss of appetite
• Labored breathing in severe cases

Natural Supportive Care

If you suspect a hen is egg bound, move her to a warm, quiet area away from the rest of the flock.

• Place her in a warm bath (about 95–100°F) for 15–20 minutes to help relax the muscles.
• Dry her thoroughly after the bath and keep her warm.
• Offer a calcium supplement, such as calcium gluconate or crushed calcium carbonate, to support muscle contractions if appropriate.
• Apply a poultry-safe lubricant around the vent to help the egg pass more easily.
• Keep the hen in a calm, dimly lit area to reduce stress and encourage relaxation.
• Monitor her closely for signs that the egg has been passed.

Conventional Treatment

• If the hen has not passed the egg within several hours, or if she becomes increasingly weak or distressed, contact a poultry veterinarian immediately.
• A veterinarian may administer injectable calcium, fluids, or manually assist with egg removal if necessary.
• Severe or recurrent cases may require additional treatment to address underlying reproductive problems.

Recovery Timeline

Timeframe	Action	Purpose
Immediately	Move hen to a warm, quiet area and provide a warm bath	Help relax the reproductive tract
Next Several Hours	Offer calcium, apply lubricant, and monitor closely	Encourage the egg to pass naturally
If Unresolved	Seek veterinary care	Prevent serious complications or death

Prevention Tip: Feed a complete layer ration with adequate calcium, provide free-choice oyster shell for laying hens, maintain a healthy body weight, and reduce stress whenever possible. Young pullets laying oversized eggs and older hens with reproductive issues are at greater risk for egg binding.

Vent Gleet (Cloacitis)

Vent gleet, also known as cloacitis, is an inflammation of the vent (cloaca) that can result from an imbalance of bacteria or yeast, poor sanitation, parasites, or other underlying health problems. Chickens with vent gleet often have soiled feathers and an irritated, inflamed vent that requires prompt attention.

Symptoms

• Dirty or matted feathers around the vent
• White or yellowish discharge
• Foul odor
• Red, irritated, or swollen skin around the vent
• Decreased egg production
• Loose droppings
• Pecking at the vent due to irritation
• Lethargy in more severe cases

Natural Supportive Care

Supportive care focuses on keeping the vent clean while helping restore normal digestive health.

• Gently clean the vent area with warm water and dry it thoroughly.
• Trim soiled feathers around the vent if necessary to keep the area clean.
• Provide probiotics to support a healthy balance of beneficial bacteria.
• Feed a high-quality, balanced diet and ensure constant access to fresh, clean water.
• Isolate affected birds if other chickens are pecking at the irritated vent.
• Keep bedding clean and dry to prevent further irritation.

Conventional Treatment

• If symptoms persist or worsen, consult a poultry veterinarian to determine the underlying cause.
• Depending on the diagnosis, treatment may include antifungal medication, antibiotics, or treatment for internal parasites.
• Continue supportive care until the vent has completely healed.

Recovery Timeline

Timeframe	Action	Purpose
Day 1	Clean the vent, remove soiled feathers if needed, and begin supportive care	Reduce irritation and improve hygiene
Days 2–7	Continue probiotics, maintain excellent sanitation, and monitor droppings	Support healing and restore normal digestive function
If Symptoms Persist	Seek veterinary guidance	Identify and treat the underlying cause

Prevention Tip: Good nutrition, clean housing, fresh water, and regular flock health checks go a long way toward preventing vent gleet. Because this condition often develops secondary to another issue, addressing digestive problems, parasites, or poor sanitation early can help keep your hens healthy.

Frostbite

Frostbite occurs when a chicken’s comb, wattles, or toes freeze after prolonged exposure to cold temperatures, especially when moisture and poor ventilation are present. Mild cases may only affect the tips of the comb, while severe frostbite can permanently damage tissue.

Symptoms

• Black or darkened comb tips
• Swelling of the comb, wattles, or toes
• Blisters
• Pain or sensitivity when handled
• Pale or gray tissue that later turns dark
• Loss of tissue in severe cases

Natural Supportive Care

If you suspect frostbite, move your chicken to a dry, sheltered area out of the wind.

• Allow the affected tissue to warm gradually at room temperature.
• Keep the comb, wattles, or toes clean and dry.
• Do not rub or massage frostbitten tissue, as this can cause additional damage.
• Monitor for signs of infection, such as increasing swelling, discharge, or foul odor.
• Provide good nutrition and fresh water to support healing.
• Use a drawing salve to soothe the comb and to draw out infection & inflammation.bumble

Conventional Treatment

• Mild frostbite often heals with supportive care.
• If tissue becomes infected or extensive tissue loss occurs, consult a poultry veterinarian.
• Antibiotics or pain management may be recommended if a secondary infection develops.

Recovery Timeline

Timeframe	Action	Purpose
Immediately	Move the bird to a dry, protected area and allow gradual warming	Prevent further tissue damage
First Week	Keep affected areas clean and dry while monitoring healing	Reduce the risk of infection
Following Weeks	Watch for damaged tissue to heal or naturally slough away	Ensure healthy tissue remains and complications don’t develop

Prevention Tip: Frostbite is usually caused by moisture, not just cold temperatures. Keep your coop well ventilated to allow humid air to escape, use dry bedding, repair roof leaks, and avoid applying petroleum jelly or other greasy products to combs and wattles before cold weather, as they have not been shown to prevent frostbite and may trap dirt or moisture. Choosing cold-hardy breeds with smaller combs can also reduce the risk in harsh winter climates.

Heat Stress

Heat stress occurs when chickens are unable to cool themselves effectively during periods of high temperatures and humidity. Because chickens cannot sweat, they rely on panting and other behaviors to regulate their body temperature. Without prompt intervention, heat stress can quickly progress to heat stroke, which can be fatal.

Symptoms

• Panting or rapid breathing
• Wings held away from the body
• Lethargy
• Pale comb or wattles
• Reduced appetite
• Standing with the neck extended
• Decreased egg production
• Open-mouth breathing
• Collapse or inability to stand (severe heat stress)

Natural Supportive Care

If a chicken is showing signs of heat stress, act quickly to help lower its body temperature.

• Move the bird to a shaded, well-ventilated area immediately.
• Provide plenty of cool, fresh drinking water.
• Add electrolytes to the water according to the manufacturer’s directions.
• Increase airflow with fans, if available, while avoiding direct drafts that could cause additional stress.
• Offer frozen treats such as watermelon, cucumbers, or frozen peas to encourage hydration.
• Lightly mist the legs and feet with cool (not ice-cold) water, or allow the bird to stand in shallow, cool water if necessary. Avoid sudden chilling with ice water.
• Reduce handling and other sources of stress until the bird has recovered.

Conventional Treatment

• Most cases of mild heat stress improve with rapid cooling and supportive care.
• Chickens that collapse, remain unresponsive, or continue struggling to breathe should receive veterinary attention immediately, as heat stroke can cause organ damage and death.
• Continue monitoring recovered birds for several days, as dehydration and reduced egg production may persist.

Recovery Timeline

Timeframe	Action	Purpose
Immediately	Move to shade, provide cool water and electrolytes	Lower body temperature and prevent dehydration
First 24 Hours	Monitor closely, offer hydrating treats, and minimize stress	Support recovery and restore hydration
Following Days	Continue providing shade and fresh water while monitoring the flock	Ensure complete recovery and prevent recurrence

Prevention Tip: Preventing heat stress starts before temperatures soar. Provide ample shade, cool drinking water at all times, good airflow through the coop, and avoid overcrowding. During extreme heat, offer frozen fruits or vegetables, collect eggs more frequently, and schedule flock chores for the cooler morning or evening hours. Chickens are especially vulnerable when temperatures climb above 90°F, particularly when humidity is also high.

Final Thoughts on Preventing Chicken Illnesses

There may be times when natural remedies aren’t enough, and that’s okay. Every homestead is different, and every flock deserves the care that’s best for its situation. Whether you choose herbal remedies, conventional treatments, or a combination of both, the goal is always the same: healthy, thriving chickens.

The good news is that many common chicken illnesses can be prevented with proper nutrition, a clean coop, good biosecurity, and routine flock health checks. By learning to recognize problems early and responding quickly, you’ll give your chickens the best possible chance at recovery.

And finally, don’t be discouraged if you lose a bird. Every experienced chicken keeper has faced illness, injury, or loss at some point. It doesn’t mean you’ve failed—it simply comes with the responsibility of raising livestock. Learn from each experience, continue improving your flock management, and remember that prevention will always be your most valuable tool.

Chicken Illness Symptom Checker

If Your Chicken Has…	It Could Be…
Sneezing	Respiratory irritation, MG/MS, Infectious Coryza
Bloody droppings	Coccidiosis
Hard crop	Impacted crop
Squishy, foul-smelling crop	Sour Crop
Limping	Bumblefoot, Scaly Leg Mites
Thick, raised leg scales	Scaly Leg Mites
Swollen face	MG/MS, Infectious Coryza
Pale comb	Lice & Mites, Internal Worms, Heat Stress
Penguin stance	Egg Binding
Dirty, irritated vent	Vent Gleet
Panting with wings spread	Heat Stress
Black comb tips	Frostbite
Weight loss	Worms, lice, chronic illness
Shaking head	Ear infection, mites, respiratory disease

FAQ

More About Raising Chickens

Whether you’ll be free-ranging them or not, keep reading for more information about raising the healthiest and happiest backyard chickens on your homestead!

• The Basics of Raising Chicks
• All About Cardboard Bedding in the Chicken Coop
• 5 Reasons to Raise Pastured Livestock
• Why You Need a Rooster
• 10 Dual-Purpose Chicken Breeds
• How to Keep Chickens Warm in the Winter
• 10 Ways to Help Chickens Beat the Heat
• Chicken Breeds for Colorful Eggs
• Cornish Cross vs. Freedom Ranger: Which Meat Chicken Breed Should You Choose?
• Save Money Raising Chickens for Eggs

Originally written in 2021. Updated in 2026.