How Gastric Bypass Surgery Works

Gastric bypass uses both a restrictive and a malabsorptive surgery technique. It restricts food intake and the amount of calories and nutrients the body absorbs. In addition to creating a smaller stomach pouch, the surgery changes the body's normal digestive process. As a result, food bypasses a large part of the stomach and most of the small intestine.

The gastric bypass procedure

Gastric bypass surgery can be performed through an open procedure or a laparoscopic (minimally invasive) procedure. Laparoscopic surgery is performed using small incisions—and usually means a shorter hospital stay, faster recovery, smaller scars, and less pain than open surgical procedures. Most surgeons prefer the laparoscopic approach.

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During a gastric bypass procedure, both restrictive and malabsorptive surgery techniques are performed. The surgeon first creates a small stomach pouch and then attaches a section of the small intestine directly to the pouch. This allows food to bypass a portion of the small intestine, which absorbs calories and nutrients. Having a smaller stomach pouch causes you to feel full sooner and eat less food; bypassing a portion of the small intestine means your body absorbs fewer calories. Gastric bypass patients report an early sense of fullness and satisfaction that reduces the desire to eat.

One study found that following laparoscopic gastric bypass, patients were able to leave the hospital after 2 days and return to work after 21 days.¹⁸

Get the answers you need about gastric bypass at an information seminar

For more information about gastric bypass, we encourage you to attend an information seminar hosted by a REALIZE trained surgeon at a bariatric clinic that offers gastric banding, gastric bypass, or sleeve gastrectomy. You'll learn about surgical options, you'll meet bariatric team members who will support you before and long after your surgery, and you may also hear from patients who have had weight loss surgery. There's no pressure to make a commitment—and no better way to get weight loss surgery information. Of course, family and friends are welcome, too.

Use our seminar finder to locate a seminar in your area, and register to ensure that you have a seat because seminars often fill up.

Want to talk it over? We're ready to help. Call us at 1-855-2-REALIZE if you have questions or concerns or want help finding a seminar near you.

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Related topics

How Gastric Bypass Surgery Works

The gastric bypass procedure

Get the answers you need about gastric bypass at an information seminar

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