Early recovery of intussusception in 3-year-olds is easy, as long as they go to a regular hospital and undergo enema repositioning therapy or surgery, depending on the severity of the intussusception, they can be restored to health. However, one should be alert to the possibility of secondary intussusception. If the intussusception of a 3-year-old child is detected at an early stage, it can be treated by conservative methods, such as air, barium or water pressure enema, so that the intussusception can be successfully reset; if the child has already developed intestinal necrosis, surgical treatment is needed. In general, intussusception is rare in children over three years old, and we should be alert to the possibility of secondary intussusception, such as caused by intestinal tumors, granulomas, multiple polyps, etc., which need to be treated for the primary cause. Parents should feed their children reasonably, do not eat too stimulating food, such as chili peppers, and eat less ice cream and other cool food. In the case of cool weather, do not let the child’s stomach cold, pay attention to abdominal warmth, for intussusception recovery has a better effect.