The stomach is not too bloated may be suffering from dyspepsia, peptic ulcer, acute pancreatitis and other diseases. 1. dyspepsia: there are two kinds of organic dyspepsia and functional dyspepsia, both of which have similar symptoms, mainly manifested as abdominal distension, abdominal pain and other epigastric discomfort, as well as acid reflux, belching, vomiting, etc., which will not lead to a significantly larger stomach. 2. Peptic ulcer: common types of gastric ulcer, duodenal ulcer, etc. Some peptic ulcer patients only manifested abdominal distension, anorexia, hiccups, epigastric discomfort, acid reflux and other symptoms. 3. Acute pancreatitis: early symptoms of abdominal pain, abdominal distension, vomiting, fever, etc., heavy pancreatitis patients abdominal distension symptoms are particularly obvious. There may be other reasons for the bloating, so you can go to the hospital for a checkup to clarify the situation.