Female case with misdiagnosis of hemophilia A who underwent total knee arthroplasty: A case report.

A female was diagnosed with hemophilia A. She had undergone bilateral total knee arthroplasty. She had a history of numerous hemorrhages including hemarthrosis. After further investigations, the diagnosis of von Willebrand disease type 2N was confirmed. The differential diagnoses for hemophilia A include von Willebrand disease, rare bleeding disorders, and severe platelet disorders.