Juan L. Calisto, MD

In Hirschsprung disease, the nerve cells that tell the bowel to relax and move stool are absent from the end of the intestine. That segment stays tightly closed, and stool backs up behind it. Most children are diagnosed as newborns — they don’t pass their first stool, or the belly becomes swollen — though milder cases can surface later in childhood.

The definitive treatment is a pull-through operation: the affected segment is removed and the healthy, nerve-containing bowel is connected down to the anus. Done well, most children go on to thrive. The harder questions come afterward — soiling, recurrent obstruction, or enterocolitis — and that is where precise evaluation matters most.

Many families arrive here for a second opinion. That is exactly the right time to ask.

Anorectal malformations are a spectrum of conditions in which the anus, rectum, and sometimes the urinary and gynecologic structures do not form normally before birth. They range from a low malformation corrected in infancy to a cloaca, where the rectum, vagina, and urethra share a single channel and reconstruction is among the most demanding in all of pediatric surgery.

Repair restores the anatomy — most often through a posterior sagittal reconstruction — but the real goal is long-term function: bowel control, urinary control, and, later, healthy sexual and reproductive anatomy. That requires a surgeon who plans for the child’s whole future, not only the first operation.

A precise first reconstruction is the single best predictor of a continent child.

Crohn’s disease and ulcerative colitis are chronic, immune-driven inflammation of the digestive tract. Most children are managed by pediatric gastroenterology with medication — and should be. Surgery enters the picture when disease resists medical therapy or creates a complication that medicine cannot fix: a stricture, an abscess or fistula, severe bleeding, or colitis that won’t settle.

For ulcerative colitis, removing the diseased colon can be curative, often with an internal J-pouch that preserves the ability to stool normally. For Crohn’s, surgery is targeted and bowel-sparing. In every case the work is shared closely with the child’s gastroenterologist.

Surgery is never the first answer in IBD — but timed well, it can be the one that gives a childhood back.