Male abdominal distension is associated with indigestion, irritable bowel syndrome, and prostate disease. The stomach mainly breaks down and digests food by stirring and grinding, and then discharges it into the duodenum. Once the stomach function is impaired, indigestion will be induced and food will enter the intestines in a semi-digested state during an attack of indigestion, so it will cause irritation to the intestines. The reaction with the harmful bacteria in the intestine will occur and a large amount of gas will be produced, and abdominal distention will occur. Some men suffer from irritable bowel syndrome and are more likely to have attacks especially when they have bad moods or have a cold in the abdomen. When you have an irritable bowel syndrome, your intestinal tract will be damaged by the absorption of gas, resulting in excessive gas accumulation in the intestinal cavity, and therefore a distended abdomen. When a man has a prostate disease, not only will he have to urinate urgently and frequently, but he will also have a swollen abdomen because the prostate is congested and edematous.