von Willebrand disease is a genetic bleeding disorder caused by a deficiency or dysfunction of von Willebrand factor, a protein essential for blood clotting. This condition leads to excessive bleeding, easy bruising, and prolonged bleeding after injuries or surgeries. It is the most common inherited bleeding disorder, affecting both men and women. There are three main types of von Willebrand disease, each varying in severity. Type 1 is mild, type 2 has moderate symptoms, and type 3 is the most severe form. Diagnosis typically involves blood tests, and treatment may include medications or infusions to help manage bleeding episodes.