Von Willebrand's - The Bleeding Disorder Nobody Notices Until Surgery
An estimated 73% of Dobermans carry the gene for von Willebrand disease, an inherited clotting disorder. Most carriers never show a symptom in daily life - the dog eats, plays, and heals from scrapes normally. The danger surfaces specifically during surgery, injury, or dental work, when a dog that can't clot properly can bleed dangerously during a routine spay, neuter, or dental cleaning.
The fix is cheap relative to the risk: a DNA test, run once, for an estimated $50-$150. Every reputable breeder and every responsible owner should know their dog's status before any elective procedure. If a transfusion becomes necessary during an emergency, that cost jumps to an estimated $1,000-$3,000 - a bill that a $100 test could have helped the vet plan around, or avoid outright with the right precautions.
This is one of the rare cases in veterinary cost planning where the prevention is genuinely a rounding error next to the risk. There's no cure for von Willebrand's, but knowing the status changes how every future procedure gets handled - different clotting agents on standby, more conservative surgical timing, a vet who isn't caught off guard mid-procedure.
The insurance angle: because von Willebrand's is hereditary, insurers commonly treat it as a pre-existing genetic condition once documented - see our glossary entry on pre-existing conditions for how that classification works. Testing before enrollment, and understanding how your specific insurer treats a positive genetic test, matters more here than in most breeds.