Celebrity on “Let's Dance” suffers from short bowel syndrome: That's why he has to wear a backpack for 17 hours a day. The small intestine plays an important role in digestion and nutrient absorption.

If part of the small intestine has to be shortened or removed,short bowel syndrome occurs. According to the medical manual MSD Manual, the condition usually occurs after a large portion of theSmall intestine is surgically removed. The following symptoms are typical of the disease: Diarrhea (main symptom) Stomach cramps Flatulence Nutrient deficiency fatigue severe weight loss