Most hiccups in newborns are normal and are caused by immature development of the diaphragm. However, it can also be abnormal or related to digestive disorders. The immature development of the diaphragm in newborns may cause hiccups in newborns when the diaphragm is irritated by too much milk or too fast, or when the diaphragm is irritated by inhaling cold air. When the newborn hiccups, parents can hold the newborn up, head against the adult shoulder, pat the baby’s back, so that the air in the stomach can be discharged, but also a small amount of newborns can drink some warm water, to improve the symptoms of hiccups. If frequent hiccups are still present after treatment, it is important to pay attention to whether they are accompanied by other clinical symptoms, because there are diseases that can also affect the diaphragm and cause frequent hiccups. Inflammation of the gastrointestinal tract, pneumonia, pericarditis or even diseases of the central nervous system such as encephalitis or meningitis may be associated with hiccups. If the hiccups do not subside or if they are accompanied by other symptoms, it is advisable to go to the hospital.