What it looks like
Lameness and difficulty walking — Bird limps, drags a leg, or moves with difficulty; may refuse to walk or stand
Swollen or enlarged joints — One or more joints appear thickened, puffy, or abnormally large
Pain or reluctance to move — Bird avoids moving; vocalizes in distress when handled; sits more than normal
Reduced egg production (in hens) — Laying hen stops or reduces egg production due to pain and stress
Poor body condition — Bird appears thin, weak, and unkempt; reduced feed intake due to pain
Abnormal posture or gait — Bird walks with a hunched back, splayed legs, or asymmetrical gait
Likely causes
- Bacterial infection of joints (septic arthritis) from wounds, respiratory disease, or bloodstream infection
- Chronic nutritional imbalance (excess protein, Ca/P imbalance, vitamin deficiency) damaging cartilage
- Genetic predisposition to skeletal weakness (some breeding lines)
- Injury or trauma to joints causing cartilage degradation
- Age-related wear and tear (common in older laying hens)
What to do
If bacterial (septic arthritis), antibiotics may help early in disease. Supportive care: anti-inflammatory medications (if available), comfortable housing with easy access to feed/water, soft bedding. Affected birds may need isolation. Consider culling if bird is in severe pain and has poor quality of life.
When to see a vet
See a vet if your bird shows severe signs or doesn’t improve within a few days of treatment.
Prevention
Provide balanced nutrition (correct protein, Ca/P ratios). Avoid overcrowding and ensure good ventilation to reduce respiratory infection risk. Minimize injury risk (remove sharp objects, manage aggression). Maintain clean housing and strict biosecurity to prevent bacterial infections.
Frequently asked questions
Is degenerative joint disease contagious?
No, it is not contagious. However, if the cause is bacterial infection, that infection may spread to other birds through contaminated housing or equipment.
Can I treat an arthritic chicken?
Treatment depends on cause. Septic arthritis (bacterial) may respond to antibiotics if caught early. Nutritional or age-related arthritis is managed with pain relief, good housing, and supportive care. Recovery is slow or incomplete.
When should I cull a lame bird?
Consider culling if the bird cannot walk, eat, or drink normally; is in chronic pain; and has poor prognosis for recovery. Quality of life matters—a bird that cannot move or interact with the flock may suffer.
How can I prevent joint disease?
Balanced nutrition (especially Ca/P and protein ratios), good housing, biosecurity, and minimizing trauma reduce risk. Avoid overstocking and ensure adequate ventilation to reduce respiratory infections.