Gastric bypass

What is a gastric bypass?

Gastric bypass surgery is a highly effective weight loss procedure which reduces the amount of calories absorbed from your food while helping you to feel full after eating smaller meals. It works by restricting the capacity of your stomach, and by bypassing part of your digestive system

The main benefit of gastric bypass surgery is its ability to help patients lose a significant amount of weight.

What does a gastric bypass involve?

Firstly, a small compartment is created at the top of your stomach using staples and a piece of your intestine is then joined to this compartment, which effectively bypasses the rest of your stomach and the upper part of the intestine. This is where most nutrients and calories are usually absorbed.

The small top part of your stomach will fill up quickly with food, giving you a sensation of fullness, and then passes directly to the middle part of your small intestine and through the rest of your digestive system. As the digestive system has effectively been made shorter you should absorb fewer calories.

The procedure can be carried out using keyhole surgery, through five or six small cuts. It can also be carried out as an open operation with one vertical cut in the abdomen. Your consultant will discuss which is more appropriate for you.

When will I recover?

You will normally need to stay in hospital for about three days after the procedure so you are happy with everything before you go home.

Most people need six weeks to recover after the operation and you will need to attend follow-up appointments with your doctor and dietician.

Our team of dieticians and specialist nurses will look after you throughout your stay and provide support and advice after surgery

What risks should I know about?

Gastric bypass is a commonly performed and generally safe procedure although some patients can find that after a year or two of rapid weight loss they are left with excess skin.


Fast-track your treatment with Gastric bypass: just enter your details below and we’ll ring you to provide a quote and answer your questions

Fast-track your treatment: just enter your details below and we’ll ring you to provide a quote and answer your questions

Message sent sucessfully