Painful urination in adolescents may be caused by injury, urinary tract infection disease, urinary tract stones and so on. 1. Injury: the lower body suffered an injury, resulting in localized damage to the urethra, urination, stimulated by urine, there may be symptoms of painful urination, may also be accompanied by mild hematuria. 2. Urinary tract infections: for example, urethritis or cystitis, may be related to poor hygiene, when the infection is serious, there may be painful urination, accompanied by frequent urination, urinary urgency and other symptoms, can be diagnosed by urine routine and urine culture and other tests. 3. urinary stones: for example, bladder stones or urethral stones, in the process of urination stone movement, resulting in damage to the urinary tract, may cause painful urination, and the pain is more intense, may also appear frequent urination, urinary difficulty, hematuria and other symptoms. Teenagers with painful urination should be alerted to the above causes, and teenage patients are advised to seek medical examination and treatment.