Male urethral pain caused by lower back pain may be related to cystitis, stones, prostatitis and so on. 1. cystitis: a variety of pathogens from different ways to invade the human body, involving the bladder to cause inflammation of the bladder, urinary abnormalities, such as pain in urination, some patients will also appear waist pain. 2. Stones: when the stone is embedded in the bladder mouth and urethra junction, there may be urinary retention urethral pain, may also cause back pain. 3. Prostatitis: pathogenic bacteria may be retrograde with the urine, in the prostatic duct reflux and other reasons, causing inflammation of the prostate gland, urethral discomfort as well as back pain. The pain in the lower back caused by urethral pain in men can also be seen in other causes, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for the relevant examination, with the help of the doctor to clarify the cause and treatment or treatment.