Male patients manifested as pain in the lower left corner of the stomach, commonly found in the following diseases: first, there are some patients who are caused by prostate hyperplasia or prostatitis will have pain in the lower abdomen, with obvious sensation of swelling, and even frequency of urination, urgency of urination, urinary tract irritation symptoms, and even severe urinary difficulties, ultrasonography can also be further diagnosed. Mainly choose sitz bath, with intravenous anti-inflammatory treatment method, in normal times should also pay attention to local hygiene, avoid spicy stimulating food, regular examination. Secondly, some patients are caused by intestinal diseases, and the common one is ulcerative colitis. It occurs more often in young people and is also an autoimmune disease. The patient in the abdominal pain will also have diarrhea occurs, manifested in the bowel movement with blood, or there is mucus pus blood stool. Enteroscopy can further confirm the diagnosis, should be systematic anti-ulcer symptomatic treatment, regular review.