<prompt> Priapism can be due to?C.M.LMyelo-fibrosisA.I.H.A.Thrombocytopenia  <response>: Ans. a C.M.LRef: Harrison 19th ed. 324y 634Priapism is characterized by prolonged, painful and irreducible erection, not resulting in ejaculation. It is an emergency with a poor prognosis, as the risk of impotence is 50.Causes of Priapism Sickle cell anemia Chronic myelogenous leukemia, Chronic lymphocytic leukemia, and acute lymphoblastic leukemia Drugs 