Spitting up in young children may be related to physiological reasons such as overfeeding and strenuous exercise after breastfeeding, as well as pathologic factors such as acute gastroenteritis, intestinal obstruction and intussusception. If it is caused by physiological reasons, it can be relieved after removing the triggers. If for pathological reasons, should consult a doctor in time, clear cause, take targeted treatment. 1. Physiological reasons: babies eat too much, resulting in an overload of the gastrointestinal tract, there will be spitting up, should be a small amount of meals. If the baby sleeps immediately after eating milk, the stomach contents can not be digested in time, will also spit up, it is recommended that 1 hour after eating milk before going to sleep. If the toddler after eating milk strenuous exercise, will lead to gastrointestinal dysfunction, spitting up, it is recommended to avoid strenuous exercise after eating milk. 2. Pathologic causes: (1) acute gastroenteritis: at this time the baby may have vomiting, fever, diarrhea, abdominal pain and other manifestations, parents can give bifidobacteria and other probiotics to regulate intestinal flora, montelukast to stop diarrhea and other treatments, the presence of bacterial infection requires oral cefixime and other antibiotic treatment. (2) intestinal obstruction, intussusception: at this time the baby may have abdominal pain, jam-like stools and other manifestations, should be timely hospital consultation, if necessary, surgical treatment. In short, when the baby appears to spit up frequently, poor spirit, weight loss and so on, it is recommended to timely pediatrics or pediatric surgery, to clarify the cause of the disease, to take targeted treatment.