You should not eat for the intussusception review. Ultrasound of the abdomen is usually needed to check for intussusception, and fasting is needed to check for intussusception. Abdominal ultrasound for intussusception needs to observe the structural characteristics and physiopathological changes in the intestine, to observe whether the appearance of “concentric circles” or “sleeve sign”, if there is too much content in the intestine, it may affect the structural characteristics of the intestine, thus affecting the imaging results. The results may be affected if there is too much content in the bowel. Fasting is not only necessary for the review of intussusception, but should also be used to promote gastrointestinal emptying during the ultrasound examination of the intestines, so that the imaging process can be more clearly defined and a more accurate judgment of the condition can be made. The auxiliary examination of intussusception also includes ultrasound-supervised water pressure enema, air enema and barium enema, etc. If you need to further carry out the above examination, you also need to fasting, so you can’t eat during the intussusception recheck. The review of intussusception should follow the doctor’s instructions, under the guidance of the doctor to complete the review, in order to avoid delaying the condition.