Slight protrusion of the male urethra may be caused by acute injury, glans, urethritis and other factors. 1. Acute injury: for example, too much force during sex or external force, so that the urethral opening is locally damaged, causing symptoms of swelling, may make the urethral opening slightly protruding, may also be accompanied by mild pain, redness and other symptoms. 2. glansitis: not paying attention to the glans area hygiene, may induce glansitis, stimulated by inflammatory substances, will also make the urethral opening slightly protruding, accompanied by itching, tingling, redness and other symptoms. 3. Urethritis: the existence of unclean sex or poor hygiene, easy to induce urethritis, urethral area by inflammatory substances stimulation, may lead to urethral orifice slightly protruding, accompanied by frequent urination, urinary urgency, urinary pain and other symptoms. Slightly protruding urethra in men can also be caused by other reasons, and it is recommended to consult a doctor for examination and treatment.