Canine Hip Dysplasia: Genetics, Pain, and Prevention

Hip dysplasia is one of the most common hereditary orthopedic conditions in dogs, causing chronic pain and reduced mobility. Responsible breeding, weight management, and early intervention are key to protecting affected dogs.

Key Facts

Hip dysplasia involves abnormal development of the hip joint, leading to joint laxity, arthritis, and pain
Large and giant breeds including Labrador Retrievers, German Shepherds, and Rottweilers are most affected
The condition is polygenic — multiple genes contribute — making elimination through simple selection difficult
Rapid growth, high-calorie diets in puppyhood, and obesity significantly worsen genetic predisposition
Clinical signs include difficulty rising, bunny-hopping gait, exercise intolerance, and pain on hip extension
Diagnosis relies on radiographic hip scoring — the BVA/KC scheme in the UK scores each hip from 0 to 53
Treatment ranges from physiotherapy and anti-inflammatory medication to total hip replacement surgery
Breeding from parents with excellent hip scores substantially reduces (but does not eliminate) offspring risk

Welfare Considerations

Canine hip dysplasia causes progressive chronic pain that significantly reduces quality of life if inadequately managed. Affected dogs may appear behavioural — reluctant to exercise, grumpy when touched — but these changes reflect pain that owners often fail to recognise as such. Early diagnosis and management is critical: weight control alone dramatically slows progression, and anti-inflammatory treatment restores comfort for many dogs. The genetic dimension creates a preventable welfare problem: breeders who fail to hip-score their breeding animals before mating pass preventable suffering down to offspring. Prospective dog owners who do not research breed-specific health issues inadvertently sustain demand for poorly bred animals. The welfare solution operates at multiple levels: breeding selection, puppy nutrition, owner education, and access to appropriate pain management throughout the dog's life.

What You Can Do

Request hip score certificates for both parents before purchasing a puppy from a high-risk breed
Maintain your dog at a lean body weight throughout life — obesity dramatically worsens hip dysplasia
Seek veterinary assessment if your dog shows any signs of reduced mobility, stiffness, or reluctance to exercise
Provide low-impact exercise such as swimming to maintain muscle mass without stressing the hip joint
Support breed clubs that maintain mandatory health testing requirements for hip scoring before breeding