Because of family planning, most of the families are only child, with the improvement of living standard, many parents found their children began to grow especially obese, obesity although look rich, but the harm is not small, easy to lead to many diseases, the following we come together to understand how to treat obesity it. 1.Behavior therapy Through publicity and education to make patients and their families have a correct understanding of obesity and its harmfulness, so as to cooperate with the treatment, adopt a healthy lifestyle, change the diet and exercise habits, and consciously adhere to long-term is the first and most important measure of obesity treatment. 2.Control diet and increase physical activity For mild obesity, control the total amount of food, adopt low calorie, low fat diet, avoid high sugar food, make the total daily calorie lower than the consumption, make more physical work and physical exercise, such as can make the weight reduce 500~1000g per month and gradually reach the normal standard weight, no need to use drug treatment. 3, drug treatment for serious obese patients can apply drugs to reduce weight, and then continue to maintain. But how to better apply this kind of drugs clinically is still to be explored, with drugs may produce drug side effects and drug resistance, so the selection of drug treatment indications must be very careful, according to the individual situation of the patient to measure the possible benefits and potential risks (pros and cons), in order to make a decision. 4, surgical treatment weight loss surgery is mainly through minimally invasive surgery to the gastrointestinal tract to re “reconstruction and decoration”, so that the effective volume of the stomach becomes smaller, eat less, absorb less, a two-pronged approach to achieve the purpose of weight loss. Currently, common surgeries include gastric bypass and sleeve gastric surgery: gastric bypass surgery simply divides the stomach into two parts, forming a new small gastric sac of about 30 cc, which is connected to the small intestine bypass, in order to achieve weight loss by limiting the amount of food eaten and reducing food absorption, while the large stomach remains in the body. The unique feature of gastric bypass surgery is that the physiological flow of food is changed, which is accomplished through gastric block, gastrointestinal anastomosis, and enteroenteric anastomosis. After the surgery, the flow of food is changed, the body absorbs less nutrients, and slimming can be achieved when the calories consumed are less than those consumed. Sleeve gastric surgery is performed by removing the large curvature of the stomach and preserving 100cc of stomach volume to reduce the secretion of the stomach hunger hormone (ghrelin) and significantly reduce hunger to lose weight. With high safety and low percentage of complications, while not affecting the absorption of food, this procedure can reduce about 70% of excess weight.