Von Willebrand's Disease

"Von Willebrand's Disease (VWD) is the name given to a group of similar inherited bleeding disorders that occur in humans, pigs, dogs and rabbits. VWD is usually less clinically severe than hemophilia and is inherited as an autosomal trait. This means that it can be transmitted equally by and to both sexes.

Carriers are asymptomatic but affected dogs may exhibit any of the following symptoms:
  * Excessive bleeding when the nails are cut too short
  * Severe bleeding during surgery
  * Bleeding from the nose or gums, particularly during teething
  * Bleeding from the vagina or penis
  * Hematomas on the surface of the body, limbs or head
  * Internal bleeding
  * Lameness from bleeding into the joints
  * Stillbirths or neonatal deaths with evidence of hemorrhage at autopsy
  * Chronically infected and bloody ears
  * Prolonged bleeding during the heat cycle or after whelping
  * Bleeding in stools or urine
Reference  Scottish Terrier Club Of America(http://clubs.akc.org/stca/geneticissues.htm#VWD