Painful urination is a symptom of the urinary tract, which may be caused by diseases such as urethritis, cystitis, urethral stones, urethral injuries, etc., and the cause should be identified by timely consultation. 1. Urethritis: usually caused by pathogens infecting the urethra, which may lead to urethral mucosal injury, and pain can occur when the urine is flushed. In addition, due to the sphincter muscle contraction and spasm during urination, it can also lead to urethral pain in patients with urethritis. 2. Cystitis: mainly manifested as frequent urination, urinary urgency, urinary pain, a few patients can be accompanied by hematuria, lumbago and other symptoms, due to the bladder inflammation stimulation, which leads to the urethra hidden pain. 3. Urethral calculi: due to bladder stones, kidney stones discharged into the urethra to stay and incarcerated, often due to urethral stenosis, urethral foreign body and other reasons, the stone stuck in the urethra on the urethral mucosa to produce stimulation, which causes painful urination symptoms. 4. Urethral injury: it may be due to fall, riding injury, fracture and other indirect trauma caused by the urethra part of the tear, contusion, or even completely broken, at this time will also appear urethral pain symptoms. This symptom alone is not enough to diagnose the disease, there may be other factors that cause it. It is recommended that the patient consult a doctor in time to clarify the cause of the disease and give targeted treatment.