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Thrombopathia in Basset Hounds

Thrombopathia in Basset Hounds

Thrombopathia is a significant health concern in Basset Hounds, characterized by an inherited bleeding disorder that affects platelet function. This condition makes it hard for blood to clot properly, leading to excessive and sometimes spontaneous bleeding. Understanding the role of genetics, symptoms, and the importance of testing and careful breeding can help manage and prevent this condition.

Genetics and Inheritance

Thrombopathia in Basset Hounds is linked to a mutation in the RASGRP1 gene. The condition follows an autosomal recessive inheritance pattern, which means that for a dog to be affected by thrombopathia, it must inherit two copies of the mutated gene, one from each parent. Dogs with only one copy of the mutation do not show symptoms and are considered carriers. These carriers can pass the gene to their offspring, making genetic testing crucial for breeding decisions. The mutation and its connection to thrombopathia in Basset Hounds were first reported in 1979, with significant research beginning in 1981.

Symptoms and Diagnosis

Affected dogs may experience various symptoms due to their inability to clot blood normally. These include frequent nosebleeds, excessive bleeding from minor cuts, gum bleeding, and, in some cases, lameness due to bleeding into the joints. Symptoms can range from mild to severe, and the severity of bleeding may not always be evident until a dog undergoes surgery or experiences trauma​​. Additionally, some signs like excessive bleeding when puppies shed their teeth, or small pinpoint bleeds on the abdomen, can be early indicators of the disorder.

Testing and Management

Genetic testing is available and recommended for identifying carriers of the thrombopathia mutation. This testing is essential for breeders to make informed decisions and avoid producing affected puppies. Breeding strategies can include mating carriers with non-carriers to ensure no affected puppies are born, although 50% of the offspring will likely be carriers. The Basset Hound Club of America mandates thrombopathia testing for all registered dogs, underscoring the breed community’s commitment to preventing this disorder​​.

Affected dogs can lead normal lives with careful management, but they are at risk of life-threatening bleeding from injuries or surgeries. Veterinarians performing surgeries on known affected dogs should be prepared with blood transfusions to manage excessive bleeding​​.


Thrombopathia in Basset Hounds is a serious genetic condition that requires attention from dog owners and breeders alike. Through genetic testing and responsible breeding practices, it’s possible to prevent the transmission of this disorder to future generations. Owners of affected dogs can manage their pet’s condition with vigilant care and regular veterinary check-ups to ensure a quality life.

Reference Websites

This overview highlights the importance of awareness, testing, and responsible breeding in managing thrombopathia in Basset Hounds. By prioritizing health and genetics, the Basset Hound community can help minimize the impact of this condition.

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