If a woman’s pregnancy is ruled out, the enlarged belly is mostly considered to be caused by an excessive increase of fat in the body. The first point is the excess subcutaneous fat in the abdomen, and the second point is the increase in visceral fat resulting in a large belly. There is a difference between men and women, women mainly manifest in the lower abdomen tummy is more common, men mostly manifest in the upper abdomen, similar to the apple belly type. Clinically, a large stomach is an important risk factor for chronic diseases, which not only indicates that we are overweight, but more importantly, is a risk factor for cardiovascular diseases, the condition of blood vessels has significantly deteriorated, and it is easy to develop circulatory system diseases, including heart disease, cerebrovascular disease and even endocrine diseases, such as type 2 diabetes, so we should promptly lose weight and carry out reasonable treatment after a large stomach.