Eating less and having a big stomach may be caused by physiological factors such as being sedentary and not standing, or pathological factors such as ascites and tumors.
1. Physiological factors: prolonged sitting, not standing, not exercising will lead to slow gastrointestinal peristalsis, appetite loss, resulting in eating less. At the same time, the body can not consume excess energy, then the excess energy will be converted into fat, more stored in the abdomen, resulting in a large stomach.
2. Pathologic factors:
(1) Ascites: the presence of excessive abdominal fluid in the abdomen compresses the stomach and reduces the capacity of the stomach, which will result in eating less and having a big stomach.
(2) Tumor: there is tumor in abdominal viscera, such as liver cancer. The tumor of liver cancer is large and often combined with ascites, which will compress the stomach and reduce the capacity of stomach, resulting in the patient eating less but having a big stomach.
The cause cannot be accurately determined by eating less but having a big stomach alone, and it needs to be combined with the characteristics of medical history and other examination results to make an accurate judgment, so it is recommended to clarify the cause of the disease under the guidance of the doctor.