Level 2: 1. Causes of hiccups in newborn babies 2. Symptoms of hiccups in newborn babies 3. Treatment methods for hiccups in newborn babies 4. Methods to prevent hiccups in newborn babies 5. Under what circumstances is it necessary to seek medical treatment for hiccups in newborn babies 1. Causes of hiccups in newborn babies The reason is that newborn babies often burp or sneeze when breastfeeding or eating. This is because the baby’s gastrointestinal function has not yet fully developed.