Hemarthrosis is bleeding into a joint. It often causes inflammation and pain.
Hemarthrosis is more likely to occur in people with bleeding disorders, such as hemophilia (a rare inherited condition), or in those who take a medicine (called a blood thinner) that prevents blood clots. It also can develop after an injury to a joint when blood vessels in the joint are also injured.
Medical Review:E. Gregory Thompson MD - Internal Medicine & Anne C. Poinier MD - Internal Medicine & Adam Husney MD - Family Medicine & Martin J. Gabica MD - Family Medicine & Brian Leber MDCM, FRCPC - Hematology