1. Why do babies hiccup after feeding? 2. How to help babies relieve hiccups? 3. How to prevent hiccups in babies? 4. Under what circumstances do you need medical treatment? 1. Why do babies hiccup after feeding? When the baby eats milk, the gas in the stomach will rise to the esophagus. Because the muscles cannot hold it, it will be discharged through the mouth, causing hiccups. This is because during fetal period, the esophagus and respiratory tract share a tube. After birth, the esophagus and respiratory tract are separated, but