1. Causes of hiccups in babies: Hiccups in babies are caused by spasm of the diaphragm. The diaphragm is one of the respiratory muscles located between the chest and abdominal cavity and controls breathing and digestion. When the diaphragm is irritated, it can spasm, causing gas to pass from the esophagus into the stomach, causing burping. 2. Frequency of hiccups in babies The frequency of hiccups in babies varies from person to person, but usually occurs multiple times a day. This is because the baby\’s digestion is not mature enough, so food tends to stay in the stomach for a long time and produce gas. 3. How to reduce hiccups in babies 1. Maintain the correct posture when feeding: Keep the baby’s head down when feeding