The baby spit up seriously like a fountain first of all to clarify whether it is physiological causes or pathological causes, if the former caused by the need to improve the feeding mode, vertical holding burp; the latter caused by the need to consult a doctor in a timely manner. 1. The baby’s digestive system is not yet fully developed, if the feeding position is not right, or a single feeding too much may cause the baby to spit up. If it is caused by the above reasons, you can adjust the feeding position, try not to lie down to breastfeed, feeding the baby’s head to be higher, after feeding the child to stand up, gently pat the back until the sound of hiccups, prompting the stomach to expel the air. Each feeding should be controlled, do not feed too much at a time, it is recommended that a small number of times. 2. Baby spitting up seriously like a fountain may also be caused by pathological reasons, such as hydrocephalus. Hydrocephalus can lead to increased intracranial pressure, and increased intracranial pressure can cause projectile vomiting, which can persist even after adjusting the feeding position and reducing the amount of milk fed. If it is caused by a pathologic reason, you need to go to the hospital for examination and receive relevant treatment. Besides hydrocephalus, other diseases (e.g. gastroesophageal reflux) may also cause babies to spit up. If spitting up occurs several times in a day, you need to go to the hospital for examination and treatment.