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Weight loss surgery

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Introduction
Information on weight loss surgery from NHS Choices including causes, symptoms, diagnosis, risks and treatment and with links to other useful resources
Who can use weight loss surgery?
Weight loss surgery is only recommended for people with BMI of 40 or above, or people with a BMI of 35 or above who have a life-threatening condition.
Getting ready for weight loss surgery
Before weight loss surgery can take place, you will be referred to a specialist unit so an assessment can be made to see if you are a suitable candidate.
How weight loss surgery is performed
The two most widely used types of weight loss surgery are gastric banding and gastric bypass surgery.
Recovering from weight loss surgery
After weight loss surgery, you will need a few days to recover. It may also be several weeks or months before you can resume normal activities.
Life after weight loss surgery
It is very important that you stick to your recommended diet plan after your surgery. Find out about diet and exercise after gastric bypass and gastric banding.
Results of weight loss surgery
As long as you stick to the recommendations on diet and exercise, all types of weight loss surgery can achieve good and often impressive results.
Risks of weight loss surgery
The rapid weight loss associated with weight loss surgery can cause a number of different side effects and expose you to a number of risks.
Why weight loss surgery is used
Weight loss surgery is used to treat morbid obesity that fails to respond to treatments, or severe obesity associated with a life-threatening condition.
How weight loss surgery works
Weight loss surgery works by making the stomach smaller, or bypassing a section of the digestive system, or both.