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Gastric sleeve surgery

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Gastric sleeve surgery

Location of stomach in upper belly, with detail of stomach before and after gastric sleeve surgery

In gastric sleeve surgery, part of the stomach is removed to make it smaller. This leaves a vertical sleeve, or tube, about the size of a banana. With a smaller stomach, you will feel less hungry and feel full a lot sooner than you are used to. This can help you eat less and lose weight.

Current as of: May 1, 2026

Author: WebMD Ignite Staff
Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

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This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.