The main causes of intussusception in children are: changes in diet, physiology, viral infections and other factors. It may also be related to factors such as genetics and immunity. In adults, intussusception is mainly due to polyps, tuberculosis, diverticula and other factors. The solutions for intussusception are mainly surgical and non-surgical treatments. 1. Dietary changes: If there is a sudden change in diet, it will lead to intestinal spasms in infants and young children as their intestines cannot adapt to the stimulation of food, thus triggering intussusception. 2. Physiological structure: infants and young children are rich in lymphatic tissues, and after being stimulated by inflammation, the ileocecal peristalsis will easily pull the intestinal tube, thus forming intussusception. 3. Viral infection: Adenovirus or rotavirus infection may cause intussusception. For patients with mild symptoms, no obvious abdominal distension and dehydration, doctors usually recommend non-surgical treatment, which mainly refers to air enema and water-pressure enema; for adult intussusception patients who fail to be reset by enema, doctors usually recommend surgical treatment, which mainly refers to incision and revision surgery or laparoscopic surgery.