Lap band surgery, also known as gastric banding, is a type of weight-loss surgery where a band is placed around the upper part of the stomach to create a small pouch. This restricts food intake, leading to weight loss. In the UK, lap band surgery is available through both private healthcare providers and the NHS. The procedure has become less common compared to other forms of bariatric surgery, such as the RNY or sleeve gastrectomy, due to its lower success rates and higher complication risks.