​Gastric Bypass Versus Gastric Sleeve

Individuals who are considering bariatric surgery for weight loss have multiple options. From traditional gastric bypass surgery to laparoscopic band surgery to gastric sleeve, each type of surgery has its own benefits and risks.

At the UPMC Bariatric Surgery Center of Excellence, our team of board certified surgeons will explain the pros and cons of gastric sleeve vs gastric bypass surgeries.

They’ll help you to make the right decision when considering bariatric surgery.

When deciding which surgery is right for you, it is essential to compare your options. When reviewing gastric bypass vs sleeve, there are a number of factors to consider:

Gastric Bypass vs. Gastric Sleeve: The Similarities

Gastric bypass and gastric sleeve are very similar procedures. In both cases, the expected hospital stay ranges from 2-3 days and the procedures are not reversible. Although the methods differ, both operations reduce the amount of food you can eat before feeling full.

Gastric Bypass vs. Gastric Sleeve: The Differences

The biggest difference between gastric bypass and gastric sleeve is the overall procedure.  


Gastric Bypass

Gastric Sleeve


A doctor attaches a small pouch to the intestine in order to bypass the stomach.

The surgeon removes a portion of the stomach, producing a tube-shaped stomach (sleeve).

Recovery Time 2 weeks 2 to 4 weeks
Risks and Complications Risk of dumping syndrome No risk of dumping syndrome
Weight Loss Results Patients can expect to lose 60 to 80 percent of excess weight within the first year to year and a half. Patients should expect to lose weight at a slower, steadier rate. In the first year, they may lose 50 to 80 percent of excess weight.

Whether you select gastric bypass or gastric sleeve, it’s important that you follow a strict post-surgery diet.

» Learn more about our surgery options and review a full comparison chart for the different bariatric surgery procedures offered at the UPMC Bariatric Surgery Center of Excellence.

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