• Bruising
• Spontaneous bleeding
• Bleeding into joints and associated pain and swelling
• Gastrointestinal tract and urinary tract hemorrhage
• Blood in the urine or stool
• Prolonged bleeding from cuts, tooth extraction, and surgery

Many blood clotting tests are performed if the person tested is the first one in the family to have a bleeding disorder. Once the defect has been identified, other family members will need less testing to diagnose the disorder.

Tests include:

• Prolonged PTT
• Normal prothrombin time
• Normal bleeding time
• Normal fibrinogen level
• Low serum factor VIII activity