Von Willebrand’s disease (vWD) is the most common inherited bleeding disorder. It affects between one and two per cent of the population.
People with vWD have a deficiency of von Willebrand factor. This is a protein in the blood that acts like a glue to make platelets clump together and stick to damaged blood cells. This is essential for normal blood clotting.
More information for parents and visitors on von Willebrand's disease