Even well-cared-for chickens can occasionally develop health or behaviour problems. Learning to recognise early warning signs can help poultry keepers respond quickly and provide the best possible care for their birds.
Chickens are naturally good at hiding illness, which means subtle changes in behaviour or appearance are often the first indicators that something may be wrong.
This guide explains 20 common problems seen in backyard chickens, the signs to watch for, and when it may be appropriate to seek veterinary advice.
Performing regular health checks helps identify issues early. These checks only take a few minutes and can be done while handling your birds.
A Chicken That Stops Eating
A healthy chicken normally has a strong appetite.
Signs
Possible causes
Loss of appetite can be linked to illness, stress, parasites, or digestive problems.
If a chicken refuses food for more than a day, it is important to monitor the bird closely.
A Chicken That Is Lethargic
Signs
Lethargy is often one of the earliest signs of illness.
Pale Comb and Wattles
The comb and wattles of a healthy laying hen are usually bright red.
Signs
Possible causes
This can sometimes indicate:
A Chicken That Stops Laying Eggs
A sudden drop in egg production can happen for several reasons.
Common causes
Most hens naturally reduce laying during winter when daylight hours decrease.
Abnormal Eggs
Occasional unusual eggs are normal.
Examples
However, frequent abnormalities may suggest dietary or health issues.
Diarrhoea or Watery Droppings
Chicken droppings can vary, but persistent watery droppings may indicate a problem.
Possible causes
Normal droppings typically contain solid waste with a white urate cap.
Dirty Feathers Around the Vent
The vent area should normally remain clean.
Signs
This may indicate digestive problems or illness.
Respiratory Symptoms
Breathing problems should always be taken seriously.
Signs
Respiratory infections can spread quickly within a flock.
Swollen Eyes
Healthy chicken eyes should be clear and bright.
Signs
These symptoms may indicate infection or irritation.
Mites and Lice
External parasites are one of the most common problems in chickens.
Signs
Regular coop cleaning and inspection helps reduce parasite problems.
Scaly Leg Mites
These mites live under the scales on a chicken’s legs.
Signs
Early treatment is usually very effective.
Limping or Difficulty Walking
A chicken that struggles to walk may have an injury or joint problem.
Possible causes
Observe the bird closely for swelling or wounds.
Bumblefoot
Bumblefoot is an infection of the foot.
Signs
Keeping perches smooth and clean helps reduce the risk.
Egg Binding
Egg binding occurs when a hen has difficulty passing an egg.
Signs
This condition can become serious and may require veterinary attention.
Feather Loss
Feather loss can occur for several reasons.
Common causes
Moulting usually happens once per year and is a normal process.
Bullying in the Flock
Chickens have a natural pecking order, but excessive aggression can cause problems.
Signs
Providing enough space and resources helps reduce bullying.
A Chicken Sitting Fluffed Up
A chicken that sits with puffed-up feathers may be trying to conserve body heat.
Signs
This can sometimes indicate illness.
Crop Problems
The crop stores food before digestion.
Signs of possible crop issues
Monitoring crop function helps detect digestive problems early.
Sudden Weight Loss
Unexpected weight loss can signal health problems.
Possible causes
Regularly observing your birds helps detect these changes.
Sudden Behaviour Changes
Any sudden change in behaviour should be taken seriously.
Examples include:
These signs often appear before more obvious symptoms.
Preventing Common Chicken Problems
Good flock management helps prevent many issues.
Important practices include:
Early observation is one of the most effective ways to keep chickens healthy.
If a chicken shows persistent signs of illness, distress, or injury, it is important to consult a qualified poultry veterinarian.
Professional advice is particularly important if you notice:
Early treatment can greatly improve outcomes.
Responsible Poultry Care
Chickens depend on their keepers for proper care, nutrition, and protection.
By learning to recognise early warning signs and providing a safe environment, poultry keepers can support the health and welfare of their flock.
