Chicken Comb Turning Black: 5 Reasons and What to Do

A black chicken comb, which is the fleshy, red crest on top of a chicken’s head, is a serious red flag. If you’ve noticed your hen’s comb turning dark, you’ll want to act fast.

Discoloration can point to frostbite, fowl pox, fungal infections, pecking injuries, or nutrient deficiencies. And left untreated? It can quickly escalate into a life-threatening situation.

In this post, we’ll dive into the 5 most common causes of a black chicken comb. Plus, you’ll learn how to identify, treat, and prevent these issues to keep your flock healthy and vibrant. Ready to get to the bottom of your chicken’s comb crisis? Let’s dig in.

What Causes a Chicken’s Comb to Turn Black?

  • Frostbite, fowl pox, and fungal infections are common causes
  • Monitoring the comb colour is essential as it can indicate various health issues.
  • Pecking by other chickens and nutrient deficiencies can also lead to black combs
  • Identifying the specific cause is crucial for proper treatment


Frostbite occurs when a chicken’s comb is exposed to extremely cold temperatures, causing the tissue to freeze and show black spots instead of the vibrant red combs you typically see. Frostbite can impair a chicken’s ability to regulate its body temperature, leading to further health complications. This is more common in breeds with large, single combs, such as Leghorns and Rhode Island Reds. Frostbite can also affect the wattles and toes.

chicken standing in snow

Preventing Frostbite

To prevent frostbite, ensure your chickens have a warm, dry coop with proper ventilation. Apply petroleum jelly or coconut oil to their combs and wattles to provide an extra layer of protection. In severe cold, consider using a safe heat source, such as a flat-panel radiant heat lamp to increase their body heat.

Fowl Pox

Fowl pox is a viral disease that causes raised, dark comb scabs on a chicken’s comb, wattles, and other unfeathered areas. The virus is spread by mosquitoes or through direct contact with infected birds or contaminated equipment.

Treating Fowl Pox

There is no specific treatment for fowl pox, but you can support your chicken’s immune system with a nutrient-rich diet and a stress-free environment. Isolate infected birds to prevent the spread of the virus. The scabs will eventually fall off, and the chicken will recover.

Fungal Infections

Fungal infections, such as aspergillosis and favus, can cause a chicken’s comb to turn black and become crusty. In contrast, a pale comb can indicate other health issues such as anemia or heat exhaustion. These infections are often associated with poor sanitation, high humidity, and a weakened immune system.

Treating Fungal Infections

To treat fungal infections, clean and disinfect the coop thoroughly, and ensure proper ventilation to reduce humidity. Consult a veterinarian for appropriate antifungal medications. Boost your chicken’s immune system with a balanced diet and probiotics.

Pecking by Other Chickens

Chickens may peck at each other’s combs, including a hen’s comb, due to overcrowding, boredom, or a lack of essential nutrients. This can cause injury and lead to a black, scabbed appearance.

six chickens jammed together in a chicken coop

Preventing Pecking

Provide adequate space for your chickens, with a minimum of 2-3 square feet per bird inside the coop and 4-5 square feet in the run. Offer plenty of enrichment, such as perches, dust baths, and foraging opportunities. Ensure your chickens have a balanced diet with proper protein levels to minimize pecking behavior.

Nutrient Deficiencies

Nutrient deficiencies, particularly in vitamin A and biotin, can cause a chicken’s comb to turn black and become dry and flaky. Proper nutrition is essential for maintaining a healthy comb and overall chicken health. This may be due to an imbalanced diet or underlying health issues that interfere with nutrient absorption.

Addressing Nutrient Deficiencies

Provide a balanced, age-appropriate feed formulated for chickens. Offer a variety of fresh fruits and vegetables as treats, focusing on vitamin A-rich options like leafy greens, carrots, and sweet potatoes. If you suspect a nutrient deficiency, consult a veterinarian for guidance on supplementation.

Treating Chicken Comb Problems

When you notice your chicken’s comb turning black or showing other signs of distress, it’s essential to take action to prevent the problem from worsening and to help your bird recover.

Changes in comb color can indicate issues with blood flow, which may require immediate attention. The first step in treating chicken comb problems is to identify the underlying issue causing the discoloration or damage.

Once you’ve determined the likely cause, you can begin taking steps to address the problem and support your chicken’s recovery.

Cleaning and Disinfecting

If your chicken’s comb shows signs of injury or infection, it’s crucial to clean and disinfect the affected areas to prevent the problem from spreading or worsening.

Steps for Cleaning and Disinfecting

  1. Gently clean the affected areas of the comb with warm water and a mild, unscented soap. Be careful not to scrub too hard, as this can cause further damage to the delicate tissue.
  2. Pat the comb dry with a clean, soft towel.
  3. Apply an antiseptic ointment, such as Vetericyn or Blu-Kote, to the affected areas. This will help prevent bacterial or fungal infections from taking hold.
  4. Repeat the cleaning and disinfecting process daily until the comb shows signs of improvement.

Supportive Care

In addition to cleaning and disinfecting the comb, it’s essential to provide supportive care to help your chicken recover and prevent the spread of any underlying illness.

Isolating Sick Birds

If you suspect that your chicken’s comb problems are due to an infectious disease, it’s important to isolate the affected bird from the rest of the flock. This will help prevent the spread of the illness to other chickens.

  1. Set up a separate coop or enclosure for the sick bird, ensuring that it has access to food, water, and a comfortable place to rest.
  2. Keep the isolated bird away from the rest of the flock until it has fully recovered and no longer shows signs of illness.

Providing Appropriate Nutrition

Make sure that your chicken receives proper nutrition is essential for supporting its recovery and overall health.

  1. Offer soft, easily digestible foods, such as cooked oatmeal or scrambled eggs, to help your chicken maintain its strength while it recovers.
  2. Ensure that your chicken has access to clean, fresh water at all times. You can add electrolytes to the water to help support hydration and recovery. Adding apple cider vinegar to the drinking water can help improve overall chicken health and prevent illness.
  3. Consider supplementing your chicken’s diet with vitamins and minerals, particularly if nutrient deficiencies are suspected to be contributing to the comb problems.
a chicken coop with chickens around it

Addressing Underlying Issues

To ensure a full recovery and prevent future comb problems, it’s essential to address any underlying issues that may be contributing to your chicken’s condition.

Treating Parasites and Illnesses

If your chicken’s comb problems are due to parasites or an underlying illness, it’s crucial to provide appropriate treatment.

  1. Consult with a veterinarian who specializes in poultry to obtain an accurate diagnosis and treatment plan. A purplish comb can indicate respiratory issues or circulatory problems, which may require veterinary attention.
  2. Administer any prescribed medications, such as antibiotics or anti-parasitic drugs, according to the veterinarian’s instructions.
  3. Continue to monitor your chicken’s progress and report any changes or concerns to your veterinarian.

Correcting Nutrient Deficiencies

If nutrient deficiencies are suspected to be contributing to your chicken’s comb problems, it’s essential to correct these imbalances through diet and supplementation.

  1. Evaluate your chicken’s diet to ensure that it is receiving a balanced mix of protein, carbohydrates, vitamins, and minerals. Commercial chicken feeds are formulated to meet these nutritional needs.
  2. Consider adding nutrient-rich treats to your chicken’s diet, such as fresh fruits and vegetables, mealworms, or high-quality scratch grains.
  3. If necessary, provide vitamin and mineral supplements under the guidance of a veterinarian or poultry nutrition specialist.

By following these steps and providing attentive care, you can help your chicken recover from comb problems and prevent future issues from arising. Remember to always monitor your flock closely and address any concerns promptly to ensure the best possible outcomes for your chickens’ health and well-being.

Preventing Chicken Comb Disorders

Preventing chicken comb disorders starts with maintaining a clean and healthy environment for your flock. Maintaining a clean environment is crucial for your chicken’s health and preventing comb disorders. A clean coop is essential for preventing the spread of disease and parasites that can lead to comb problems.

Maintain a Clean Environment

Regularly cleaning and disinfecting the chicken coop is crucial for preventing comb disorders and other health issues. Remove droppings, soiled bedding, and any moldy or wet materials daily. Disinfect the coop, roosting bars, and nesting boxes with a poultry-safe disinfectant at least once a month.

Proper ventilation is also important for maintaining a healthy environment. Ensure the coop has adequate airflow to prevent the buildup of ammonia and moisture, which can lead to respiratory issues and comb problems.

Provide Fresh Bedding Material

Providing fresh, clean bedding material is another key aspect of maintaining a healthy environment. Use absorbent materials like wood shavings, straw, or hemp bedding to keep the coop dry and comfortable for your chickens. Change the bedding regularly to prevent the growth of harmful bacteria and fungi.

chickens sitting in fresh bedding

Provide a Balanced Diet

Feeding your chickens a complete, age-appropriate diet is essential for maintaining their overall health and preventing comb disorders. Offer a high-quality commercial feed that meets their nutritional needs, and supplement with fresh fruits and vegetables for added vitamins and minerals.

Ensure your chickens have access to clean, fresh water at all times. Dehydration can lead to a variety of health issues, including comb problems.

Offer Supplements if Needed

In some cases, your chickens may benefit from additional supplements to support their health and prevent comb disorders. For example, providing a vitamin E supplement can help improve circulation and promote healthy skin and feathers.

Chicken Comb Colors and Their Causes

Comb ColorPossible Causes
Red/Deep RedIndicates a healthy, mature chicken, or could signal fever if accompanied by illness.
Pale PinkCan be due to anemia, molting, heat stress, or non-laying pullets.
Purple/Dark RedSuggests poor circulation, respiratory issues, or severe health problems like heart attack or stroke.
Black SpotsOften caused by injuries, peck marks, fowl pox, frostbite, or parasite bites.
BlueIndicates circulatory or respiratory issues, often due to lack of oxygen.
Brown/Crusty SpotsTypically a sign of fowl pox or fungal infections.
White SpotsCan be due to fungal infections or dry skin.
A table of possible causes based on chicken comb color

Protect from Extreme Weather

Extreme weather conditions can take a toll on your chickens’ health, including their combs. In cold weather, frostbite can cause combs to turn black and become damaged. Provide adequate shelter and insulation to keep your chickens warm, and consider applying a thin layer of petroleum jelly to their combs to protect them from the cold.

In hot weather, heat stress can cause combs to become pale and droopy. Offer shade and plenty of cool, fresh water to help your chickens stay comfortable. You can also provide frozen treats or set up a misting system to help them cool off.

Monitor Flock Health

Finally, monitoring your flock’s health is crucial for preventing comb disorders and other issues. Observe your chickens daily for signs of illness, such as lethargy, decreased appetite, or changes in comb color or texture. Address any concerns promptly to prevent the spread of disease.

When introducing new birds to your flock, quarantine them for at least 30 days to ensure they are healthy and free of parasites or infectious diseases. This will help prevent the introduction of health problems to your existing flock.

Address Aggressive Pecking Behaviors

Aggressive pecking can lead to comb injuries and infections. If you notice any birds pecking at others’ combs, remove the aggressive bird from the flock and provide additional enrichment, such as toys or foraging opportunities, to reduce boredom and aggression.

By following these preventive measures, you can help keep your chickens’ combs healthy and avoid common disorders. Regular monitoring and prompt treatment of any issues will ensure your flock remains happy and thriving.

Keeping Your Chicken’s Comb Healthy

A black comb is a warning sign that your chicken needs help. Frostbite, fowl pox, fungal infections, pecking injuries, and nutrient deficiencies are the most common culprits. Identifying the cause is crucial for providing the right treatment.

Pale combs can indicate anemia, heat exhaustion, or other health issues that need to be addressed.

Cleaning, supportive care, and addressing underlying issues can help your chicken recover. Prevention is key – maintain a clean coop, provide a balanced diet, protect from extreme weather, and monitor your flock closely.

If your chicken’s comb turns dark red, purple, or blue, spreads rapidly, or doesn’t improve with home care, it’s time to call the vet. They can diagnose the problem and provide the best treatment plan.

Your chicken’s comb is a window into their overall health. By staying alert, taking action, and giving them the care they need, you can keep your feathered friends happy and thriving. What steps will you take today to ensure your chickens’ combs stay bright and healthy?


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Disclaimer: The information provided on this blog is for informational and entertainment purposes only. It is not intended to replace or be construed as professional health advice. Always seek the guidance of your doctor or veterinarian before implementing or altering the diet of your backyard animals. The author assumes no responsibility for any adverse effects or consequences resulting from the use of any suggestions, preparations, or procedures discussed on this blog. If you are reading this for the purpose of making major financial or life decisions, please consult a professional before doing so. By reading and using my website, you are agreeing to my terms and conditions. Thanks y’all!

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