A little stinging pain when urinating may be related to urethral infection, urethral stones, prostatitis and other reasons. 1. Urethral infection: As the urethra is infected by bacteria and other pathogens, the inflammatory factor can stimulate the mucous membrane of the urethra, which will cause a stinging sensation when urinating. 2. Urethral stones: such as bladder stones, urethral stones and other diseases, due to the stone mechanical stimulation of the urethral mucosa, can produce a little stinging pain in the urine, in addition, if the stone triggered bleeding, blood can also stimulate the urethral mucosa to produce a stinging pain in the urine. 3. Prostatitis: The typical symptoms of prostatitis are frequent urination, urinary urgency, painful urination, pelvic pain and radiating pain in the perineal area. The pain of urination may also be caused by other factors, it is recommended that patients go to the regular hospital in time, clear the cause of the disease, under the guidance of the doctor for standardized treatment, so as not to delay the condition of the body to bring about adverse effects.