Children’s stomach bulging, can be a normal physiological phenomenon, but also may be related to functional dyspepsia or intestinal flatulence. 1. Normal physiological phenomenon: small children, especially infants and young children, the abdominal muscles are weak, the intestinal tract contains more gas, so under normal circumstances can be manifested as abdominal fullness, the stomach looks greatly bulging. If not accompanied by other symptoms, such as vomiting, fever, etc., usually do not need special treatment. 2. Functional dyspepsia: If a child has functional dyspepsia, the stomach is often bulging, and accompanied by bloating, abdominal pain and other symptoms. 3. Intestinal flatulence: If a small child has gastrointestinal disorders or obstruction, it will lead to gastrointestinal gas can not be discharged out of the body, then the gas will accumulate in the gastrointestinal tract will have a sense of flatulence, so the stomach looks bulging. Children’s stomach bulging, there are physiological reasons, there are also pathological reasons, need to be based on the symptoms to determine the specific causes.