Considering the negative previous history of bleeding (including multiple dental extractions with no excess bleeding, and only recent onset of menorrhagia) and negative family history, the diagnosis of acquired von Willebrand syndrome (AVWS) was made with a type 2 M‐like pattern (discordant VWF activity to antigen ratio with normal VWF multimers). The gene discussed is VWF; the disease is acquired von willebrand syndrome.