Male abdomen bulge may be caused by obesity, abdominal tumor, intestinal obstruction and other reasons. 1. Obesity: this disease belongs to chronic metabolic diseases, which can be manifested as abnormal fat distribution and excessive accumulation of body fat. If men suffer from obesity, it may cause raised abdomen, which can be accompanied by easy fatigue, snoring and other manifestations. 2. Abdominal tumor: for example, small intestine cancer, colon cancer, etc. When the tumor gradually increases, it will lead to abdominal protrusion, which may be accompanied by abdominal pain, diarrhea, blood in stool and other symptoms. 3. Intestinal obstruction: it may be caused by intestinal tumor, foreign body in intestinal lumen, intestinal tube jamming and other factors, which will make men’s abdomen bulge, and may be accompanied by nausea, vomiting, abdominal distension, abdominal pain and other symptoms. Male abdomen bulge, may also be caused by other reasons, if accompanied by obvious discomfort symptoms, it is recommended to consult a doctor as soon as possible, after diagnosis of the cause of the disease, to give targeted treatment and conditioning.