Hereditary Defects

Common inherited conditions in pedigree dogs and available health screening programmes. Articles explain specific diseases, testing procedures and how breeders can reduce genetic problems.

Are Purebred Show Dogs Unhealthy?
Are Purebred Show Dogs Unhealthy?
Purebred show dogs aren't necessarily unhealthy—here's what the controversy actually gets wrong.
Congenital Deafness
Congenital Deafness
Congenital deafness in dogs is inherited and affects over 40 breeds, often linked to white coats and blue eyes, though it can occur in any dog.
DNA Screening Use in Dog Breeding
DNA Screening Use in Dog Breeding
DNA screening tests help breeders identify dogs carrying genetic diseases and prevent passing them to the next generation.
Elbow Dysplasia
Elbow Dysplasia
Elbow dysplasia in dogs causes joint damage and arthritis that can start in puppyhood and affect them for life, but X-rays can detect it early.
Eye Conditions
Eye Conditions
Inherited eye conditions in dogs can cause blindness and pain, but choosing responsible breeders who test for these issues can help prevent suffering.
Growth Defects in Larger Breeds of Dog
Growth Defects in Larger Breeds of Dog
Large breed puppies need careful handling to prevent bone damage, and buyers should always verify health checks on parent dogs before purchasing.
Hip Dysplasia and Hip Scoring
Hip Dysplasia and Hip Scoring
Hip dysplasia in dogs causes joint pain and lameness, here's what causes it, how to spot the signs, and what hip scoring reveals.
Inherited Heart Defects and Diseases
Inherited Heart Defects and Diseases
Some dog breeds inherit heart conditions that cause serious suffering, so knowing how to test for them and choosing responsible breeders matters.
Osteochondritis Dissecans (OCD)
Osteochondritis Dissecans (OCD)
OCD in dogs causes joint cartilage damage and lameness in large breeds, but proper breeding, nutrition and exercise can prevent most cases.
Syringomyelia
Syringomyelia
Syringomyelia causes painful fluid-filled cavities in the spinal cord, especially in small dog breeds like Cavalier King Charles Spaniels.
The Kennel Club Breed Initiatives
The Kennel Club Breed Initiatives
The Kennel Club's accredited breeder scheme sets out health checks and breeding standards to reduce hereditary defects in dogs.