Baby old hiccups may be caused by improper feeding, mental psychological factors, gastrointestinal lesions and other factors. 1. Improper feeding: If the baby’s age is small and the parents feed the baby too fast or inhale too much gas while feeding, frequent hiccups will occur after feeding. 2. Psychological factors: the baby was overly frightened, there is tension and anxiety and other negative emotions, may have an impact on the sympathetic nerve, it is easy to cause frequent hiccups. 3. Gastrointestinal lesions: Due to the poor gastrointestinal function of children, parents give their children too much cold and greasy food, causing indigestion is easy to hiccups, may also be accompanied by abdominal pain, nausea, vomiting and other symptoms. Baby hiccups and other abnormal manifestations, should be vigilant for disease, recommend medical examination and treatment.