Intussusception is a unique disease in infancy and early childhood, the cause of intussusception in infants and children is not completely clear, most of them are primary accounting for more than 90%, secondary accounting for about 2% to 5%. Most of them are related to the following factors.
First, because infancy and early childhood is the period of intestinal peristaltic rhythm is in a period of change, prone to intestinal peristaltic disorders, such as the addition of complementary foods or the nature of food, the environment, temperature changes and intestinal infections and other factors can induce intestinal peristaltic disorders and cause intussusception.
Second, also related to the local anatomical factors of the intestinal canal, infants and young children ileocecal part is more mobile, ileocecal flap is lip-like convex into the cecum, ileocecal part of the peristaltic abnormalities, can pull the intestinal wall to form a sleeve.
Third, can also be caused by viral infections, such as pediatric adenovirus or rotavirus infection, intestinal peristalsis enhanced caused by the end of the ileum collection of lymph node hyperplasia, local intestinal wall thickening, and even the formation of swellings to the intestinal cavity protrusion constitutes intestinal sleeve. Therefore, children with diarrhea and vomiting should be vigilant.
Fourth, because primary intussusception mostly occurs in infants within one year of age, this age belongs to the body’s immune function is not perfect, the intestinal wall of the immune function is very easy to be destroyed caused by intestinal peristaltic disorder and induced intussusception.