Urinary pinch penis bleeding may be caused by penile trauma, urethral injury, circumcision tie injury, etc. It is recommended that the patient consult a doctor in a timely manner to identify the cause of the disease. 1. Penile trauma: penile injury can occur after being hit by external forces, riding across and other direct force, the light can form purple bruises, the heavy can form subcutaneous, corpus cavernosum or glans hematoma, hemorrhage, may also appear pain, blood in the urine, urinary disorders and other symptoms. 2. Urethral injury: squeezing and pinching the penis during urination may lead to local soft tissue trauma, causing urethral injury, resulting in the patient in the absence of urination can also appear bleeding urethral orifice symptoms, accompanied by localized pain in the urethra, urinary difficulties, swelling of the penis and other symptoms, long-term extravasation of urine can also cause infection, fever and other systemic symptoms. 3. Injury to the prepuce ligament: Because the prepuce ligament is rich in blood vessels, after pinching the penis with the hand, there can be bleeding at the fracture site, which can also cause pain. Avoid pinching the penis when urinating, and once bleeding and other symptoms occur, you should consult a doctor in time for treatment under the guidance of a physician.