Patients with Hirschsprung disease may suffer from enterocolitis, either before or after corrective surgery. They have an underlying dysmotility of the colon which leads to stasis of their stool, subsequent bacterial overgrowth, diarrhea and dehydration.

The rationale of rectal irrigations is to clean the colon of stool and to prevent “stasis” (failure of stool to empty from the colon). Your child should be irrigated with normal saline solution beginning with 10-20ml at a time for a total of 20ml/kg. If the saline is returned during the irrigation process, then this volume can be repeated.