Synovial hemangioma is a rare entity characterized by the presence of normal or abnormal blood vessels, arising from the synovial lining of the tendon sheath or joint space. Nonspecific symptoms and lack of awareness of the condition often leads to delay in diagnosis. We report a case of 25 year old young female presented with recurrent swelling and pain over the left knee joint since 15days. Repeated aspiration yielded only blood. Arthrotomy with synovectomy was done. Histopathology of the resected specimen showed a synovial hemangioma.