How do I tell if my dog has Factor VII deficiency?

Factor VII deficiency is often silent until a bleeding event — many owners don't know their dog has it until surgery, a tooth extraction, or a significant injury triggers prolonged bleeding. In mild cases, dogs may never show obvious signs. In more severe cases, you might notice easy bruising, prolonged bleeding from small cuts, or blood in urine or stool. It's caused by a mutation in the F7 gene and is most common in Beagles, Deerhounds, and several other breeds. DNA testing is definitive. Our vets can help you understand whether testing makes sense and what precautions to take.