during bypass, what percent of your stomach do they take out?

Bypass they technically do not remove your stomach except create a pouch like 1oz-2oz size by stapling sutures to create that separation.

I think it works out to be roughly 1/10th of the size but don't quote me on that...

The sleeve VSG is the one where they remove 80+% of stomach leaving 20% vs 10% in the BYPASS.

But then again different surgeons use different techniques so it's best to discuss with your specific surgeon.

Hope that makes sense.

Also the BYPASS is more about the bypass of the intestines than just the size of the stomach there's plenty of research material out there.

they don't take out any of your stomach with RNY. They just section it off with staples.

Yeah I does its secondary function- gastric acid, digestive juices- it just "Stores No More", in theory one could be reversed but I'm not sure if motility, peristalsis and enervation would come back and you would certainly be looking at OPEN SURGERY and having had an Abdominal Incision for something else They Can Be Boogers to Heal and not Every Bariatric Surgeon Can or Will undertake the grueling process. Have to be convinced. IT IS THE ONE BEST ALTERNITIVE FIR YOU!
MINE is that Skilled, would HE DO IT FOR ME? DOUBTFUL, VERY DOUBTFUL! Would I Ask? WELL I Haven't Yet and I have had an extremely Rocky Road and at less than one month to 74, I Very Well MIGHT NOT LIVE through IT ALL- So-o-o.....!

Even doing research it’s hard to find exactly the size of the stomach but my nutritionist class I had to attend explained everything in detail about how the stomach is roughly the size of an egg. You gradually build up how much you put in your new pouch at a time. Starting with 1 oz in the first days to 2 ounces And eventually 3-4 ounces. Everything depends on your personal tolerance.

like others have said it’s not just about stomach size aka the pouch that’s separated from the remnant stomach. It’s the rerouting of the intestines. I ended up having my gallbladder out at the same time because of chronic inflammation. Be aware it’s extremely common for rapid weight loss to effect the gallbladder and eventually needing it out.

i saw your question and it made me think of my own. All my research I can’t quite figure out what that remnant portion of stomach does. I thought the digestive juices go through it and into the diverted small intestine.

when I asked my surgeon about wether someone could have ulcers in the remnant portion he acted like nothing goes through it, I couldn’t get a clear answer. I’m having pain and spasms in that area and can’t quite get answers. Except they can only check inside that portion of stomach surgically.

but not trying to scare you I’ve a load of issues from lifelong chronic illness. But gastric bypass was the best option for me having GERd and metabolic disorders and the metabolism of a sloth ... I questioned and worried a lot about the size of my pouch. I kind of wish they had taken the remnant portion of stomach away. I won’t ever want a reversal even if possible ...

I am an exception, they took my stomach because it's terrible condition, so all I have left is the pouch. They also took my gall bladder which was a surprise to wake up to.

I've been told it all depends on the surgeon and how things look when they get in there. Anywhere from 60-85% could be removed.

10 minutes ago, lvidacovich said:

I've been told it all depends on the surgeon and how things look when they get in there. Anywhere from 60-85% could be removed.

that's for the sleeve. They don't remove any of the stomach with the bypass - they just section it off with surgical staples.

2 minutes ago, catwoman7 said:

that's for the sleeve. They don't remove any of the stomach with the bypass - they just section it off with surgical staples.

You're right - didn't see the forum section or the first post. Sorry!

They dont take anything out. Your natural stomach is stapled shut from the top and is fixated to your body inside. What is left of your new "stoma stomach" is usually enough for 1 to 2 oz. of food.