Examination of the urethra is considered to be a good pain in the urethra examination improper operation, the mucous membrane of the urethra caused by damage, or the urethra itself there is inflammation, deformity, trauma, etc., to do the examination can also cause pain in the urethra. 1. Improper operation: mostly occurs when doing urethroscopy, due to improper operation or excessive force, etc., the mucous membrane of the urethra caused by damage, resulting in mucous membrane breakage and pain. 2. Inflammation of the urethra: the patient himself has inflammation of the urethra, the urethral mucosa is congested, edema, so in the examination can cause pain in the urethra. 3. Urethral malformation: mostly due to congenital developmental abnormalities or trauma, especially when there is urethral stenosis deformity, the use of urethroscopy is more likely to lead to urethral pain. 4. Urethral trauma: due to the role of external forces, resulting in trauma to the urethra, urethroscopy in the stimulation of the damaged parts, can be induced by urethral pain. Check urethral pain for many reasons, it is recommended that patients go to the hospital, improve the auxiliary examination, clear urethral pain specific causes, by professional physicians to give appropriate treatment.