Infant’s tummy tapping up empty sound may be related to physiological factors, or it may be caused by indigestion, lactose intolerance, constipation and other reasons. 1. Physiological factors: If parents do not pay attention to keep the baby’s abdomen warm, resulting in the baby’s abdomen being cooled, causing intestinal distension, it may show that the baby’s stomach shoots up empty sound. 2. Indigestion: If parents have improper feeding methods, such as too short an interval between two feedings, too much milk at one time, or improperly adding complementary foods to the baby, it may lead to indigestion in the baby, which may cause the tummy to clap up empty sound. 3. Lactose intolerance: some infants due to lactase deficiency, easily caused by lactose intolerance, resulting in abdominal distension, which may cause the baby’s stomach beat up empty sound, may also be accompanied by diarrhea, abdominal pain and other symptoms. 4. constipation: some infants due to insufficient daily drinking water, defecation habits and other reasons, resulting in constipation, causing abdominal distension, it may cause the stomach beat up empty sound. The baby’s stomach clap up empty sound, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.