Gastric bypass surgery at Spire Wellesley Hospital

Reduces the size of your stomach and redirects the digestive tract.

At Spire Wellesley Hospital, our highly skilled consultants and expert aftercare team offer gastric bypass surgery to help you lose weight if severe obesity is affecting your health.

During a gastric bypass, your surgeon will reduce the size of your stomach and connect it to the lower part of your small intestine, restricting the calories you can eat and absorb.

Sometimes also called

  • Roux-en-Y bypass

At a glance

  • Typical hospital stay
    1-2 nights

  • Procedure duration
    1-3 hours

  • Type of anaesthetic
    General

  • Available to self-pay?
    Yes

  • Covered by health insurance?
    Some insurers, by exception

Why Spire?

  • Fast access to diagnostic tests and scans
  • Expert, personalised treatments
  • Clear, inclusive pricing
  • Rated 'Good' by the Care Quality Commission

By Wallace Health I Medically reviewed by Adrian Roberts.
Page last reviewed: October 2018 I Next review due: October 2023

Gastric bypass surgery: what to expect at Spire Wellesley Hospital

We provide comprehensive private hospital care for our patients across Essex and the South East.

You’ll have a choice of bariatric surgeons (consultants specialising in weight loss surgery) who can carry out gastric bypass surgery. This can help to reduce your weight if changing your diet and lifestyle hasn’t worked.

Our bariatric surgeons are supported by a team of dietitians and bariatric nurses who can ensure the treatment and aftercare is tailored to your needs. Your dietitian will offer you dietary support, such as advice and a diet plan.

Q & A

Simon Monkhouse, Consultant Upper GI and Bariatric Surgeon

Talking about gastric bypass surgery

How much does Gastric bypass surgery cost at Spire Wellesley Hospital

It's a common operation to have done privately, and our inclusive prices and access to payment plans make it easy and more affordable, even if you don’t have medical insurance.

Weight loss surgery - gastric bypass
Initial consultation We can't display the initial consultation fee just now. Call us for a quote.
Treatment price £11,995
Aftercare Included
From price From £11,995
Monthly treatment price

(Loan applicable to the treatment cost and excludes the initial consultation)

£269
Representative example
Loan amount £10,745
Deposit £1,250
Loan period 48 months
Representative APR 9.9%
Total amount repayable £12,912

The price shown is the ‘from price’ (ie the minimum cost of the procedure). Please note that for some procedures the actual price you are quoted may vary significantly and can increase depending on your choice of Consultant (who is an independent practitioner and not an employee of Spire). The fees charged by Consultants and Anaesthetists are set independently and are outside the control of Spire. The price may also vary depending on the type of anaesthetic, implant or drug used, and your medical history.

Spire Wellesley Hospital can provide you with a single, fixed price for your procedure so there are no surprises. Please read Spire Healthcare's terms and conditions for full details of what’s included and excluded in your fixed price when paying for yourself. Finance options are available through our partner Omni Capital Retail Finance Ltd, 10 Norwich Street, London, EC4A 1BD.

Preparing for gastric bypass surgery at Spire Wellesley Hospital

Getting here

Spire Wellesley Hospital is a couple of miles from Southend town centre, just off the A127. We’re a short taxi ride from the train station, which has a fast and regular connection to London Liverpool Street. We have free on-site parking for you and your visitors.

Your consultations

Your initial appointments will take place in one of our 16 consultation rooms. During your consultations, we’ll:

  • Ask about your medical history
  • Explain about the different surgical methods – your consultant may recommend gastric sleeve surgery first
  • They’ll explain what’s included in your treatment price
  • Explain about your aftercare, the diet and exercise plan you’ll need to follow and how the operation will affect your lifestyle in the long term
  • Discuss risks and complications

The consultations give you an opportunity to ask any questions you may have. Once you and your consultant have decided to go ahead with a gastric bypass, you’ll also be assessed by a bariatric nurse, an anaesthetist and a dietitian. You'll also need to have a pre-operative assessment which may include:

  • An electrocardiogram (ECG)
  • Blood tests

Gastric bypass surgery: your procedure

When you come in for your operation, you’ll be with us for around one to two days. You’ll stay in one of our large, bright, private en-suite rooms. All our rooms have the comforts and conveniences you’d expect to find at home, including:

  • TV
  • En-suite bathroom
  • Armchair
  • Safe

Here’s what will happen on the day of your gastric bypass:

  • You’ll meet your surgical team and anaesthetist
  • Your anaesthetist will administer the general anaesthetic, which will send you to sleep for the operation
  • Once it’s taken effect, your surgeon will carry out the surgery to reduce the size of your stomach and connect it to the lower part of your small intestine
  • Your operation will take between one and three hours

If you’ve come with a friend or family member, they’re welcome to wait in our lounge while you have your operation.

Your aftercare and recovery

After surgery, our nursing team will give you pain relief to help you deal with any discomfort from the surgery.

Once you leave hospital, we’ll have follow-up appointments with you two weeks and six weeks after surgery, then as required.

Although everyone’s different, here’s a typical recovery guide for gastric bypass surgery:

1–2 days

Leave hospital

4–6 weeks

Follow a controlled, monitored diet

4–6 weeks

Back to most activities and some weight loss

3–6 months

Less symptoms of rapid weight loss

2 years

Most weight loss will have happened

  • 1–2 days


    Leave hospital

  • 4–6 weeks


    Follow a controlled, monitored diet

  • 4–6 weeks


    Back to most activities and some weight loss

  • 3–6 months


    Less symptoms of rapid weight loss

  • 2 years


    Most weight loss will have happened

The treatment described on this page may be adapted to meet your individual needs, so it's important to follow your healthcare professional's advice and raise any questions that you may have with them.

How to get to us

Southend is only 20 miles from the M25 and Spire Wellesley Hospital is a couple of miles from the town centre, just off the A127. We are a short taxi ride from the train station, which has a fast and regular connection to London Liverpool Street.

Find us on Google maps

Use geographic coordinates/what3words

Spire Wellesley Hospital,

Eastern Avenue
Southend-on-Sea
Essex
SS2 4XH

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Important information about Covid-19 tests

COVID-19 testing or antibody tests are not available as a standalone service at Spire Wellesley Hospital.

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https://patient.info/health/obesity-overweight/weight-loss-surgery#nav-4
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