The belly bulge like pregnancy may be some physiological phenomenon, may also be the manifestation of certain diseases, such as abdominal fluid, abdominal distension, etc., should be timely consultation to find out the cause of the disease. 1. Physiological factors: if too obese people have more body fat, thicker accumulation of abdominal fat, looks like a raised abdomen like pregnancy. Especially people who often sit, the abdomen and buttocks will have thicker fat pads, there will be a small belly as pregnant as the case. 2. Pathological factors (1) Abdominal fluid: clinical often caused by cirrhosis, also known as ascites, is the most significant clinical manifestation during the period of hepatic dysfunction. When there is a large amount of ascites, the abdomen may appear bulging like pregnancy, the abdominal wall is taut and shiny, and the patient has difficulty moving. (2) Abdominal flatulence: Flatulence in the abdomen is often caused by dyspepsia, which may be due to gastrointestinal motility disorder. Clinical manifestations often include abdominal distension, constipation, and increased flatulence, which can cause the belly to bulge like pregnancy. If physiological causes are ruled out, you should consult a doctor to clarify the cause of the problem and conduct appropriate examinations if necessary.