When people hear that James had a second surgery, the assumption is almost always that the first one failed. It did not. James fell not long after his initial sleeve, hurt himself badly enough that it needed correcting surgically, and came out of that second operation with roughly 13% of his stomach remaining. It has taken us a while to get comfortable explaining that clearly, because “revision surgery” as a phrase gets used for a lot of very different situations, and lumping them together does nobody any favours.
The medical reasons people usually mean by revision
Clinically, the three most commonly cited reasons for revising a sleeve are severe reflux that medication cannot control, weight regain of more than roughly a quarter of the weight originally lost (particularly once you are three or more years out), and persistent type 2 diabetes that has not improved the way it was expected to. Reflux specifically has become one of the more common long-term complaints after sleeve gastrectomy, and it is one of the more frequent reasons surgeons recommend converting to a gastric bypass rather than simply increasing medication indefinitely.
Weight regain after a sleeve is often linked to the remaining stomach stretching over time, something sometimes called sleeve dilation. It happens more often after sleeve gastrectomy than after bypass, largely because a sleeve relies more heavily on the physical size of what is left staying restricted, without the additional rerouting that a bypass has built in.
What the surgery itself usually involves
The most frequently performed revision procedure is conversion to a Roux-en-Y gastric bypass, which tends to help with both reflux and further weight loss at the same time, addressing two problems in one operation. Less common options include single anastomosis duodeno-ileal bypass and biliopancreatic diversion with duodenal switch, both considerably more complex and usually reserved for specific circumstances rather than offered as a default. Recovery from a revision tends to be longer and more involved than the original sleeve, partly because the surgeon is working with tissue and scar tissue from a previous operation rather than a clean slate.
Where James’s situation was different
None of the standard reasons above applied to James. His second surgery came from an injury, not from the sleeve failing to do its job, and it left him with a much smaller remaining stomach than either of us had expected going into it. We have written honestly elsewhere on this site about what that 13% figure has actually meant day to day, but the surgical side of the story matters too: not every revision is a weight-regain story, and not every second operation means the first one did not work. Sometimes it is an accident that has nothing to do with willpower, diet adherence, or how well the original surgery was going.
What we would say to someone facing a second procedure
If you are looking at a revision, for any reason, it is worth being honest with yourself and with your surgical team about which category your situation actually falls into, because that shapes both the conversation you need to have and the recovery you should expect. A revision for reflux is a different journey to a revision after an injury, even though both get filed under the same word. Ask your surgeon directly what caused the need for a second surgery in your specific case, and do not let the word “revision” alone tell you the whole story, because on its own it rarely does.
Sources
Peer reviewed literature on revisional bariatric surgery outcomes following sleeve gastrectomy, including comparative studies of conversion procedures.
NHS and specialist bariatric service information on revision surgery.
About this content
This blog is written by James and Kirsten, a couple from the UK who had gastric sleeve surgery together in March 2024.
We started this blog because we couldn't find any sources of content that details before surgery, the surgery and then life post surgery - so we decided to write one ourselves.
Everything on this site is based on our own experience and the research we have done along the way. It is not medical advice. Gastric sleeve surgery is a serious procedure and every patient's journey is different. Please always consult your own bariatric team or GP before making any decisions about your health or treatment.
Some posts on this site may contain featured or sponsored content, or affiliate links. Where this is the case, it will always be clearly stated at the top of the article. Our opinions are always our own.
Publish Date: 20 July 2026 | Last Reviewed: 9 August 2026 | Next Planned Review: 9 February 2028