Babies with bulging stomachs may be a normal physiological state, or may be due to indigestion, or intestinal obstruction and other organic diseases. 1. Normal physiological state: the baby’s abdominal wall is relatively weak, after eating milk or swallowing gas, before defecation, there may be bulging, if the baby eating, defecation, sleep, etc., all aspects of the situation is not abnormal, no need to worry about it, usually in a normal physiological state. 2. Indigestion: If infants suffer from indigestion, they may also have bulging tummies. As the digestive function of infants is still imperfect, if they do not digest their food or are affected by infections, cold abdomen and other factors, they are prone to abdominal distension, and their tummies may be bulging, and some of them may suffer from poor feeding, vomiting and diarrhea. 3. Intestinal obstruction and other organic diseases: some infants have bulging stomachs, which may be induced by surgical acute abdominal diseases such as intestinal obstruction, and the infants’ mental state is generally poor, accompanied by less milk, lethargy, high fever and other clinical manifestations. If the baby has a bulging stomach, it is recommended to closely observe the baby, and if any abnormality occurs, consult a doctor in time and follow the doctor’s instructions for symptomatic intervention.