an erection that will not disappear (priapism). Should you have an erection that lasts in excess of 4 several hours, get medical assistance at once. If It is far from addressed at once, priapism can completely injury your penis.Góc s?c kho?Tra c?u thu?cTra c?u d??c ch?tTra c?u d??c li?uB?nh th??ng g?pB?nh vi?n??i ng? chuyên mônHo?t ??ng xã h?iT