Children always have hiccups related to colds, inhaling a lot of air or eating too fast, and upper gastrointestinal diseases: 1. Cold and flu: If a child is not well warmed and has a cold and flu, it can easily lead to spasms of the diaphragm, which can cause hiccups. 2. Inhaling a lot of gas or eating too fast: there are some children like to play during meals, shouting or even laughing, which can lead to a lot of air into the abdomen at once. Some children eat too fast in order to play, causing the stomach to receive a lot of food at once, these will affect the diaphragm, hiccups. 3. Upper gastrointestinal diseases: children with chronic gastritis, gastric ulcer, gastroesophageal reflux can also lead to hiccups. There are other causes of hiccups, so it is advisable to take your child to the hospital to find out the cause.