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Short bowel syndrome: the signs, dehydration, the stages of treatment, and day to day
For anyone who has had part of the small intestine removed, or was told the small intestine cannot absorb enough; for anyone who gets nutrition through an IV or a tube; for parents of a baby or child with short bowel syndrome after necrotizing enterocolitis or a birth defect; and for the people who love them. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK, part of the NIH) says short bowel syndrome develops when the small intestine is shortened or damaged and cannot absorb enough nutrients to maintain health, that it most often happens after surgery, and that in most cases the intestines are able to heal and adapt. This page passes on, by name, what NIDDK says: the signs, dehydration, and when it cannot wait; the causes and what can come with it; the questions, the exam and the tests; nutrition support in three stages, fluids, kinds of medicine and surgery; and food and drinks. It builds the words to say to a doctor, and prints a card to keep.
A word with a dotted line under it, like this, opens its official definition, quoted from a U.S. government glossary.
Right now
- Fainting, confusion, or very hard to wake? A baby or child who is very sleepy, limp or hard to wake? Call 911 (ours).
- Signs of dehydration: dark urine or urinating less, extreme thirst and a dry mouth, feeling light-headed or dizzy, sunken eyes or cheeks; in a baby, no wet diapers for 3 or more hours or no tears when crying? NIDDK says seek medical care right away. If your care team cannot see you today, go to urgent care or an emergency room (ours).
- An IV line with a fever or chills, or redness, swelling or leaking where it goes in? Call your care team right away; if you cannot reach them, go to an emergency room (ours). Never stop a prescribed medicine or nutrition plan on your own (ours).
- It is all too much, or you are thinking of ending your life? Call or text 988, any hour (ours).
More help
- The belly, on this site: Vomiting and diarrhea · Crohn’s disease · Lactose intolerance · Peptic ulcers · An upset stomach: find the right page.
- What can come with it, as NIDDK names it: Gallstones · Kidney stones · Osteoporosis · When you or someone you love has cancer.
- Day to day: Symptom diary · My medicines list · Caring for someone · Get ready for your appointment.
- Care and costs: When you can’t afford your medicine · When you need a doctor and can’t pay · When a medical bill is too much.
- In a crisis: Help right now (988, 911). All our free tools.
An upset stomach, and not sure this is the right page? The pages on this site for throwing up, diarrhea, heartburn and constipation, on one list.
This page and its wording were written with AI (Claude) for Scarlet Beast (our AI policy). No doctor or nurse has reviewed it. The facts were read on October 17, 2026 on NIDDK’s Short Bowel Syndrome pages (NIH): the overview, Definition & Facts, Symptoms & Causes, Diagnosis, Treatment and Eating, Diet, & Nutrition, and their Spanish versions; all were last reviewed in April 2023 and say the same things. NIDDK names kinds of medicine only, and so do we. Ours: 911 for fainting, confusion or being very hard to wake, or a baby or child who is very sleepy, limp or hard to wake; urgent care or an emergency room when your care team cannot see you the same day; calling your care team right away about a fever, chills, or redness, swelling or leaking at an IV line; never stopping a prescribed medicine or nutrition plan on your own; asking what was removed and what remains; a log of drinks, urine, stools and weight; the card; 988 when it is too much; health centers when money is tight; and the order of the steps. What we left out: medicine names, brands, doses, research studies, and clinical pages for providers. This page saves nothing and loads no trackers.