Is bariatric surgery available on the NHS?
Weight loss surgery is available on the NHS, but the criteria are strict and the timeline is long. This guide explains who qualifies, what the process involves, and how your GP can support a referral.
What is bariatric surgery?
Bariatric surgery is the clinical term for weight loss surgery. There are several types, including gastric bypass, sleeve gastrectomy, and gastric band procedures. They all work by changing the anatomy of the digestive system to reduce how much food you can eat or absorb.
These are significant surgical procedures carried out under general anaesthetic. They are not a first resort — they are considered when other approaches have not produced sufficient results.
Who qualifies for NHS bariatric surgery?
NHS eligibility criteria
- A BMI of 40 or above — OR a BMI of 35–39.9 with a serious condition like type 2 diabetes or high blood pressure
- All other weight loss treatments (diet, exercise, medication) have been tried and have not worked
- You are fit enough to have a general anaesthetic and surgery
- You have been receiving treatment in a specialist obesity service
- You agree to long-term follow-up after surgery
How long does the process take?
NHS bariatric surgery is not a quick process. The assessment and waiting time depend on the local service and your needs. The process can include:
- Physical health checks and tests
- Psychological assessment to ensure you are mentally prepared
- Input from dietitians and specialist nurses
- A structured period of supervised weight management
This isn't designed to make the process difficult — it's there to ensure surgery is safe and that you have the support in place to make the most of it long-term.
Check the current pathway
Eligibility and waiting times vary by local commissioning arrangements. See the current NHS obesity treatment guidance (opens in a new tab) and ask your GP which specialist service and criteria apply locally.
What are the risks?
All surgery carries risk, and bariatric procedures are no different. Common short-term risks include infection, blood clots, and anaesthetic complications. Longer-term, patients may experience nutritional deficiencies (particularly in B12, iron, and calcium) that require lifelong supplementation. Your surgical team will explain the full risk profile as part of your assessment.
How do I start the process?
The process begins with your GP. They will discuss whether you meet the initial criteria and, if appropriate, make a referral to a specialist obesity service. At Abbamoor, we can support this referral for eligible patients.
Ready to have an honest conversation?
If you think bariatric surgery might be the right path for you, register with Abbamoor and book a GP appointment to discuss your options.