Von Willebrand disease is a lifelong bleeding disorder in which your blood doesn't clot well. Most people with the disease are born with it, though its warning signs may not show up for years. Some people may suspect they have a bleeding disorder when they have heavy bleeding after a dental procedure or, for women, during a menstrual period.
Most people with this condition inherited it from a parent. They have a faulty gene that causes problems with a protein important to the blood-clotting process.
Von Willebrand disease can't be cured. But with good treatment and self-care, most people with this disease can lead active lives.