The cause of a big belly may be physiological or pathological. Physiological is seen with the increase in age, metabolism, consumption gradually slowed down, the body’s excess energy will be stored in the form of fat, so people tend to be easy to get fat in middle age, and these excess fat will be hoarded in the small abdomen, which is also known as a small stomach. If you want to avoid this situation as much as possible, you have to insist on proper exercise every day, so that the consumption of energy is properly increased, which can effectively avoid the enlargement of the small stomach. In addition, there are some diseases that can also lead to the accumulation of fat in the small stomach, such as cortisol increased disease such as this kind of disease, can lead to the increase of the small stomach.