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Weight Loss Surgery
URL of this page: https://medlineplus.gov/weightlosssurgery.html

Weight Loss Surgery

Also called: Bariatric surgery, Bypass surgery, Gastric banding, Obesity surgery
On this page

Basics

  • Summary
  • Start Here

Learn More

  • Living With
  • Related Issues
  • Specifics

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  • Health Check Tools

Research

  • Statistics and Research
  • Clinical Trials
  • Journal Articles

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For You

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  • Patient Handouts

Summary

Weight loss surgery helps people with extreme obesity to lose weight. It may be an option if you cannot lose weight through diet and exercise or have serious health problems caused by obesity.

There are different types of weight loss surgery. They often limit the amount of food you can take in. Some types of surgery also affect how you digest food and absorb nutrients. All types have risks and complications, such as infections, hernias, and blood clots.

Many people who have the surgery lose weight quickly, but regain some weight later on. If you follow diet and exercise recommendations, you can keep most of the weight off. You will also need medical follow-up for the rest of your life.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

Start Here

  • Gastric Bypass Surgery (Mayo Foundation for Medical Education and Research)
  • Gastric Bypass Surgery: Who Is It For? (Mayo Foundation for Medical Education and Research) Also in Spanish
  • Weight-Loss (Bariatric) Surgery From the National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases)

Living With

  • Gastric Bypass Diet: What to Eat after the Surgery (Mayo Foundation for Medical Education and Research) Also in Spanish

Related Issues

  • Bariatric Surgery (Endocrine Society)
  • Body Contouring After Major Weight Loss (American Society of Plastic Surgeons)
  • Dieting and Gallstones From the National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases) Also in Spanish
  • Dumping Syndrome (Mayo Foundation for Medical Education and Research) Also in Spanish

Specifics

  • Bariatric Surgery Procedures (American Society for Metabolic and Bariatric Surgery)
  • FAQs of Bariatric Surgery (American Society for Metabolic and Bariatric Surgery)

Health Check Tools

  • Calculate Your Body Mass Index From the National Institutes of Health (National Heart, Lung, and Blood Institute) Also in Spanish

Statistics and Research

  • Estimate of Bariatric Surgery Numbers, 2011-2021 (American Society for Metabolic and Bariatric Surgery)

Clinical Trials

  • ClinicalTrials.gov: Bariatric Surgery From the National Institutes of Health (National Institutes of Health)
  • ClinicalTrials.gov: Gastric Bypass From the National Institutes of Health (National Institutes of Health)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

  • Article: Opioid-free anesthesia in bariatric surgery: a prospective randomized controlled trial.
  • Article: Effectiveness of an intervention designed based on the Health Action Process...
  • Article: Roux-en-Y gastric bypass, adjustable gastric banding, or sleeve gastrectomy for severe...
  • Weight Loss Surgery -- see more articles

Find an Expert

  • ABSMS Directory Search (American Society for Metabolic and Bariatric Surgery)
  • Find an Obesity Medicine Clinician (Obesity Medicine Association)
  • National Institute of Diabetes and Digestive and Kidney Diseases From the National Institutes of Health

Teenagers

  • Gastric Sleeve Surgery (Nemours Foundation) Also in Spanish
  • Weight Loss Surgery (Nemours Foundation)
  • Weight Loss Surgery: An Option for Teens? (American Academy of Pediatrics) Also in Spanish

Patient Handouts

  • Diet after gastric banding (Medical Encyclopedia) Also in Spanish
  • Gastric bypass surgery (Medical Encyclopedia) Also in Spanish
  • Gastric bypass surgery - discharge (Medical Encyclopedia) Also in Spanish
  • Laparoscopic gastric banding (Medical Encyclopedia) Also in Spanish
  • Laparoscopic gastric banding - discharge (Medical Encyclopedia) Also in Spanish
  • Vertical sleeve gastrectomy (Medical Encyclopedia) Also in Spanish
  • Your diet after gastric bypass surgery (Medical Encyclopedia) Also in Spanish

Topic Image

Weight Loss Surgery

MEDICAL ENCYCLOPEDIA

  • After weight-loss surgery - what to ask your doctor
  • Before weight-loss surgery - what to ask your doctor
  • Diet after gastric banding
  • Gastric bypass surgery
  • Gastric bypass surgery - discharge
  • Laparoscopic gastric banding
  • Laparoscopic gastric banding - discharge
  • Vertical sleeve gastrectomy
  • Your diet after gastric bypass surgery

Related Health Topics

  • Obesity
  • Weight Control

National Institutes of Health

The primary NIH organization for research on Weight Loss Surgery is the National Institute of Diabetes and Digestive and Kidney Diseases

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The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.

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