肠套叠是小儿时期常见的一种急腹症,多发生于6—12个月婴儿,男孩比女孩多见,肥胖儿较瘦弱儿多见,2岁以后逐渐减少。婴儿的肠管相对地比成人长而薄,包裹在肠管表面的肠系膜较长而柔软,不能很好地将肠管固定在后腹壁而活动度大,肠蠕动还不 Intestine intussusception is a common childhood acute abdomen, occurred in 6-12 months of infants, more common in boys than girls, obese children more common than thin children, 2 years after the gradual decrease. The baby’s intestine is relatively long and thinner than adults, the mesentery wrapped around the intestinal tract is longer and softer, the intestine is not well fixed in the posterior abdominal wall and the activity is high, bowel movements are not