There are many causes of abdominal pain in men, and the diagnosis is more complicated, requiring a detailed history and giving a differential diagnosis. If the patient has a history of unclean diet in the past and now has digestive symptoms such as abdominal pain, bloating and diarrhea, the focus is on acute enteritis or food poisoning as the cause. If the patient presents with urinary symptoms such as urinary frequency, urinary urgency and pain, the pain may be caused by urinary stones or urinary tract infection. If the patient has no defecation for a long time, abdominal distension is more obvious, and the X-ray film shows signs of intestinal obstruction, the focus of consideration is whether the pain is caused by intestinal obstruction.