Lap Band Erosion - All You Need to Know

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Lap band erosion, also called lap band migration:

  • Means that the band in place after adjustable gastric band surgery has grown into the stomach
  • May be the reason for increased hunger, weight regain, port site skin infection or abscess, or your band needing to be overfilled in order to work correctly
  • Occurs in as few as 2% and as many as 9.5% of patients
  • Is treated by permanently removing the band

Read and click the sections below for everything you need to know about the issue.

Lap Band Erosion

If your gastric band is growing into your stomach, it will no longer be restricting food from passing through. As a result, the primary symptoms of lap band erosion will be increased feelings of hunger and weight gain.

But how can you know if the weight gain is caused by erosion, the need for a band fill or your bariatric diet?

First, it takes a while for erosion to happen. On average, lap band erosion is diagnosed almost 2 years after surgery, so if it has only been a year or less since your surgery this is not likely to be your problem (1).

The most common symptoms other than increased hunger and weight gain are…

  • Port site skin infection (about half of all patients with gastric band erosion also experience port site infection)
  • Port site abscess
  • A band that needs to be overfilled in order to give you the right amount of restriction (2)

However, it is possible that you won’t experience any symptoms at all other than weight regain.

If you notice increased feelings of hunger, weight gain or symptoms of infection, call your doctor right away.

If during your next fill you notice that your band is being overfilled (compared with previous fills), ask you doctor if it could be a sign of erosion.

Your doctor can confirm the lap band erosion diagnosis by inserting a scope through the mouth and into the stomach to take a direct look (also called an “endoscopy”).

Lap Band Erosion

Patients who experience lap band erosion have the same amount of weight loss as patients who do not experience it (3). In other words, if it happens to you it does not mean that all you’ve gone through was for naught.

While you would need to have your gastric band removed if erosion has occurred, converting to a different type of bariatric surgery is usually very effective. Conversions have also been found to have much better results than rebanding (4).

“Patients who experience erosion have the same amount of weight loss as patients who do not experience it.”

Common lap band revision procedures include:

Conversion to the duodenal switch usually results in a bit more weight loss than gastric bypass, but this comes with a longer operation time and higher complication rate (5). Several studies suggest that gastric bypass is the safer conversion alternative, but partner with good bariatric doctors to make the choice that’s right for you.

Following a conversion surgery, you should continue to lose weight or, at a minimum, not experience any more weight gain.

See the following pages for more information:

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Lap Band Erosion

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Questions From Other Visitors*

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Cause of lap band erosion and whether it is safe to remove the band endoscopically*

I had gastric lap band surgery 8 years ago. About 3 years ago I started having problems with extremely loose stools. It has gotten worse over time, and most of…



  • M. Suter, V. Giusti, E. Héraief, and J.-M. Calmes, “Band erosion after laparoscopic gastric banding: occurrence and results after conversion to Roux-en-Y gastric bypass,” Obesity Surgery, vol. 14, no. 3, pp. 381–386, 2004.
  • Muller MK, Attigah N, Wildi S, et al. High secondary failure rate of rebanding after failed gastric banding. Surg Endosc. 2008;22:448–53.
  • Topart P, Becouarn G, Ritz P. Biliopancreatic diversion with duodenal switch or gastric bypass for failed gastric banding: retrospective study from two institutions with preliminary results. Surg Obes Relat Dis. 2007 Sep-Oct;3(5):521-5.
  • Marina Kurian, Sammy Sultan, Karan Garg, Heekoun Youn, George Fielding, Christine Ren-Fielding. Evaluating gastric erosion in band management: An algorithm for stratification of risk. Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery, 21 December 2009 (Article in Press DOI: 10.1016/j.soard.2009.11.020)