Priapism
Priapism is an abnormal penile erection which is generally not initiated by sexual stimulation and doesn’t lead to ejaculation lasting more than 6 hours in a case of ischemic priapism. It is an urgent medical condition that requires evaluation and often rapid treatment to avoid loss of erectile function. The priapism may result either from reduction or loss of the normal venous outflow from the penis=veno-occlusive, ischemic, anoxic or low-flow priapism or abnormal arterial inflow into the penis= arterial, non-ischemic or high-flow priapism.