Pull-through surgery
In this procedure, the lining of the diseased part of the colon is stripped away. Then, the normal section is pulled through the colon from the inside and attached to the anus. This is usually done using minimally invasive (laparoscopic) methods, operating through the anus.
Ostomy surgery
In children who are very ill, surgery might be done in two steps.
First, the abnormal portion of the colon is removed and the top, healthy portion of the colon is connected to an opening the surgeon creates in the child's abdomen. Stool then leaves the body through the opening into a bag that attaches to the end of the intestine that protrudes through the hole in the abdomen (stoma). This allows time for the lower part of the colon to heal.
Once the colon has had time to heal, a second procedure is done to close the stoma and connect the healthy portion of the intestine to the rectum or anus.