Hiccups are normal when the baby is full, sometimes accompanied by spitting up, generally do not need to worry too much, if the baby also has other symptoms such as projectile vomiting, then you need to consult a doctor in a timely manner. 1. It is completely normal for babies to hiccup when they are full. This may be due to the fact that babies eat more milk, which causes the diaphragm located above the stomach to be stimulated, or it may be due to the fact that babies swallow too much air when they are eating milk, which are normal phenomena. 2. Sometimes parents may even find that the baby not only hiccups, but also spits up after eating, which is also normal. Parents can hold the baby vertically for a while after feeding the baby, while patting the baby’s back, to help the baby alleviate the symptoms of hiccups and spitting up, and also help the baby to rub the abdomen clockwise to promote the baby’s digestion. 3. If your baby has not only hiccups but also projectile vomiting, you need to be alert to the possibility of meningitis, encephalitis and other diseases, so if your baby’s symptoms continue to be unrelieved, it is recommended that you seek medical attention in time to avoid delays.