Abdominal pain in a three-year-old child three years after intussusception surgery may be caused by the recurrence of intussusception, cold abdomen, intestinal spasm and other reasons. 1. Recurrence of intussusception: three-year-old children three years after intussusception surgery irregular diet, often overeating or eating cold stimulating food, will lead to indigestion, and in serious cases, will lead to the recurrence of intussusception, thus causing abdominal pain. 2. Abdominal cold: three years after the three-year-old child intussusception surgery do not pay attention to abdominal warmth, resulting in abdominal cold, abdominal pain, diarrhea symptoms may occur. 3. Intestinal spasm: Intestinal spasm may be related to dietary factors, gastrointestinal tract gas accumulation and other reasons, which will lead to strong contraction of the smooth muscle of the intestinal wall, thus leading to abdominal pain. Abdominal pain in a three-year-old child three years after surgery for intussusception may also have other causes, such as postoperative chronic adhesive intestinal obstruction, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.