von Willebrand disease type 2M (MONDO_0015630) is a subtype of type 2 VWD characterized by a bleeding disorder associated with a decrease in the affinity of the Willebrand factor (von Willebrand factor; VWF) for platelets and the subendothelium in the absence of any deficiency of high molecular weight VWF multimers. Also known as: von Willebrand disease, type 2M.