Bleeding from the glans can be caused by trauma, glansitis, urinary tract infection and sexually transmitted diseases. 1. Trauma: when the glans and prepuce are subjected to external force, it will cause the mucous membrane to rupture and thus the symptom of bleeding glans. 2. glans inflammation: inflammation of the glans caused by trauma, irritation or infection, the glans, under the stimulation of inflammation, will lead to a small amount of mucous membrane bleeding symptoms. 3. Urinary tract infection: after the patient suffers from urinary tract infection, the mucous membrane of the urethra forms ulcers, and there will be bleeding after the blood vessels are ruptured, which will also show the symptom of bleeding from the glans. 4. Sexually transmitted diseases: Condyloma acuminatum, syphilis, genital herpes and other sexually transmitted diseases may lead to glans bleeding. When patients have bleeding glans, they should go to the hospital in time for consultation, after clarifying the cause of the disease, and actively cooperate with the doctor’s treatment.