Acquired von Willebrand Disease: A Rare Bleeding Disorder Explained

Acquired von Willebrand disease (AvWD) is a rare blood disorder that disrupts normal clotting. Unlike the genetic form, it develops later in life and is often linked to other medical conditions. Doctors consider it even less common than inherited von Willebrand disease (vWD), which affects fewer than 200,000 people in the US alone. AvWD usually appears in adulthood. It can arise from underlying health issues or as a side effect of certain medications. Conditions like lymphoproliferative disorders, autoimmune diseases, heart problems, and essential thrombocythemia are often associated with its development.

The disorder shares symptoms with the genetic form of vWD. Patients may experience prolonged bleeding, large bruises, anaemia, heavy menstrual bleeding, or gastrointestinal haemorrhages. Diagnosis relies on laboratory tests combined with these clinical signs. Unlike inherited vWD, AvWD is not passed down through families. Doctors identify it by ruling out the genetic type and examining a patient's medical history for contributing factors.

AvWD remains a challenging condition due to its rarity and complex causes. Treatment focuses on managing the underlying disorder or adjusting medications where possible. Early recognition of symptoms can help prevent severe bleeding complications.