It is more common for children to cry, which is mostly normal, but since children are small and cannot clearly express their discomfort, parents should pay attention to observation and raise awareness of precautionary measures to think about the possibility of pediatric intussusception to avoid delaying the child’s condition and causing adverse consequences. Primary intussusception is a common pediatric surgical emergency, mostly occurs in the spring, summer, autumn and winter junction season, the specific cause is unclear, mostly related to intestinal viral infection, improper addition of complementary foods, diarrhea and other causes of intestinal dysfunction, between the ages of 6 months to 3 years old, the onset of sudden, clinical manifestations of healthy babies suddenly appear crying (abdominal pain performance, older children may be expressed), paroxysmal, lasting 3 5 minutes, crying can be accompanied by according to food, arching back and abdomen, pale face, sweating, etc., difficult to use the usual method of comfort, intermittent normal, intermittent 1-2 hours repeated; In addition, the baby is accompanied by vomiting, more frequent, for vomit can contain yellow-green bile, no stool, with the development of the disease, the late may appear jam-like blood stool, abdominal distension, etc.. Parents should be alert if their baby has the above manifestations, and promptly bring the baby to the doctor for abdominal ultrasound examination to prevent delayed diagnosis and treatment, resulting in serious consequences.