There is no such thing as a “sign” in medicine. In general, the typical symptoms of intussusception can be used as a basis for judgment, including abdominal pain, bloody stools, and abdominal masses. The disease is most common in infants and young children who are not fed properly, or adults with intestinal polyps and intestinal tumors. 1. Abdominal pain: If it is acute intussusception, it can be manifested as sudden onset of severe paroxysmal colic. Chronic intussusception can be acute paroxysmal colic, or it can be chronic hidden pain that lasts for months or even longer. 2. Bloody stools: due to intestinal intussusception, resulting in intestinal circulation obstruction, venous return obstruction, tissue congestion, the patient may appear jam-like mucus blood stools. 3. Abdominal mass: during the attack of intussusception, a mass may appear in the epigastrium or around the umbilicus, and the abdomen is usually flat without pain and without a mass. In addition, there are other accompanying symptoms of intussusception, it is recommended that when abdominal pain occurs, consult a doctor in a timely manner to confirm the diagnosis of the condition and early treatment.