Excess body weight, often resulting from an imbalance between calorie intake and expenditure. It poses significant health risks, including diabetes, cardiovascular diseases, and certain cancers. Bariatric surgery is a treatment for severe obesity, aiming to reduce weight and improve health. Procedures like gastric bypass and sleeve gastrectomy alter the digestive system to limit food intake and nutrient absorption. Bariatric surgery can lead to substantial weight loss, enhance metabolic health, and alleviate obesity-related comorbidities. However, it's a serious intervention with potential risks and lifestyle changes. Proper patient selection and postoperative care are crucial for successful outcomes.