RisksBy Mayo Clinic staff
As with any major surgery, gastric bypass and other weight-loss surgeries pose potential health risks, both in the short term and long term.
Risks associated with the surgical procedure can include:
- Excessive bleeding
- Adverse reactions to anesthesia
- Blood clots
- Lung or breathing problems
- Leaks in your gastrointestinal system
- Death (rare)
Longer term risks and complications of weight-loss surgery vary depending on the type of surgery. They can include:
- Bowel obstruction
- Dumping syndrome, causing diarrhea, nausea or vomiting
- Low blood sugar (hypoglycemia)
- Stomach perforation
- Death (rare)
- American Gastroenterological Association. American Gastroenterological Association medical position statement on obesity. Gastroenterology. 2002;123:879.
- Bariatric surgery for severe obesity. National Institute on Diabetes and Digestive and Kidney Diseases. http://win.niddk.nih.gov/publications/PDFs/gasurg12.04bw.pdf. Accessed Aug. 20, 2011.
- Jones D, et al. Surgical management of severe obesity. http://www.uptodate.com/home/index.html. Accessed Aug. 15, 2011.
- Jones D, et al. Complications of bariatric surgery. http://www.uptodate.com/home/index.html. Accessed Aug. 15, 2011.
- Kushner RF, et al. Medical management of patients after bariatric surgery. http://www.uptodate.com/home/index.html. Accessed Aug. 15, 2011.
- FDA expands use of banding system for weight loss. Food and Drug Administration. http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm245617.htm. Accessed June 9, 2011.
- Mechanick J, et al. American Association of Clinical Endocrinologists, the Obesity Society, and American Society for Metabolic & Bariatric Surgery medical guidelines for clinical practice for the perioperative nutritional, metabolic, and nonsurgical support of the bariatric surgery patient. Obesity. 2009;17(suppl):S1.
- Collazo-Clavell ML (expert opinion). Mayo Clinic. Rochester, Minn. Sept. 7, 2011.
- Sarr MG (expert opinion). Mayo Clinic, Rochester, Minn. Sept. 16, 2011.