how far should the tip of an enema tube be inserted for an infant?
For an adult or an adolescent, carefully insert the tip 7.5 cm to 10 cm (3 to 4 inches); for a child, 5 cm to 7.5 cm (2 to 3 inches); and for an infant, 2.5 cm to 3.75 cm (1 to 1.5 inches). Inserting the tube too far into the rectum can cause perforation.