von Willebrand's disease.

Patients with a history of epistaxis, menorrhagia or excessive bleeding after dental or surgical procedures may have von Willebrand's disease. Although screening coagulation tests may be normal, many patients with this disease will have excessive bleeding after surgical procedures if the disorder has not been recognized and appropriately treated. Patients with von Willebrand's disease may be treated with a medication that stimulates an increase in von Willebrand's factor, allowing them to avoid the need for blood product support.