The pain in the middle of the lower abdomen in men is considered to be related to prostatitis, acute cystitis, urological and intestinal diseases. 1. prostatitis: prostatitis with prostate congestion, edema, vasospasm and other changes, so there will be pain in the middle of the abdomen, often accompanied by urinary urgency, urinary frequency, urinary waiting and other changes. 2. Acute cystitis: when suffering from acute cystitis, due to inflammation stimulation of the bladder mucosa, resulting in damage to the bladder mucosa, urine in the bladder will stimulate the broken bladder mucosa can appear in the middle of the abdominal pain. Often accompanied by frequent urination, urinary urgency, urinary pain and other symptoms. 3. Urinary stones: when suffering from urinary stones, the stones can cause pain in the middle of the abdomen when they stimulate the ureteral mucosa or bladder mucosa. 4. Intestinal diseases: acute enteritis or intestinal spasm, due to intestinal inflammation on the mucous membrane stimulation or intestinal spasm can cause pain in the middle of the abdomen. Men who have pain in the middle of the lower abdomen need to go to the hospital in time to check the specific cause and treatment, so as not to delay the condition.