Urethral pain and lower abdominal distension may be due to urinary tract infection, urinary stones and urinary retention. 1. urinary tract infection: such patients can appear inside the urethra pain, lower abdominal distension, urinary frequency, urinary urgency, urinary pain and other phenomena, through the urine routine examination can appear white blood cell elevation symptoms, can be through the levofloxacin, ceftazidime, and other drugs for treatment, the drug needs to be applied under the advice of a doctor. 2. Urinary stones: there can be pain in the urethra, lower abdominal distension, and urination can occur when the urine stream becomes thin, intermittent urine flow, urinary frequency, urinary urgency, urinary pain and other symptoms, the urinary stones of the population can be through the exercise, drink plenty of water and other ways of stone expulsion, but also through the ultrasonic lithotripsy way of treatment. 3. Urinary retention: due to various reasons patients are unable to urinate, resulting in urine accumulating more and more in the bladder, naturally there is a feeling of bloating, excessive urination can cause pain, and there is also tugging pain in the lower abdomen. Pain inside the urethra lower abdominal distension may also be caused by other factors, it is recommended that people with this symptom go to the regular hospital in time for treatment, and strive for early recovery.