Pain inside the urethra is recommended to go to the hospital for further examination to clarify the cause: 1, acute urethritis, can cause the urethral mucosa congestion, edema, erosion and other changes, then there can be pain inside the urethra, especially during urination pain aggravated, need to carry out urine culture or urine routine laboratory tests to confirm the diagnosis. 2, the emergence of urethral stones, tumors, polyps, etc., can appear persistent pain inside the urethra, and at the same time may be accompanied by Abnormal urinary changes, such as urinary pain or urethral blood, urination, urinary divergence, etc., if necessary, need to carry out urethroscopy to confirm the diagnosis. 3, sexually transmitted diseases can easily lead to pain in the urethra, such as gonorrhea, nongonococcal urethritis, which can lead to urethral mucous membrane acute edema, and at the same time, can be accompanied by a large amount of urethral secretion, which can be accompanied by the existence of yellow or white secretion, are generally It occurs after a history of unclean sexual contact and requires screening related to STDs to confirm the diagnosis.