With the increasing number of obese people and the pursuit of health and beauty, various weight loss methods are flooding the streets and alleys, various beauty salons almost all launch weight loss methods, various hospitals of all sizes almost all have various kinds of massage, acupuncture and buried lines, etc., as well as various drugs for weight loss, closed exercise for weight loss, more traumatic such as liposuction, etc., these weight loss methods, not only in the regular bright places appear, but also in the network is full of mythical formulas or program combinations. In the network is full of many mythical weight loss formulas, or program combinations, etc.. These weight loss methods are seductive, easy to follow, easy to operate, easy to achieve, don’t cost much, and don’t seem to be a loss if you try them anyway. Almost all of our obese patients have undergone various weight loss methods, tried various prescriptions, experiences, etc. before undergoing surgery. The cost of these various weight loss methods seems to be modest, but they range from a packet of weight loss tea for a few tens of dollars to a course of massage for hundreds of dollars, all the way to liposuction or imported weight loss meals for several thousand dollars, or closed weight loss in boot camps. Often the first contact with our weight loss surgery patients will almost all unanimously tell the doctor that almost all weight loss methods are effective, they do not feel that these methods are ineffective for their 200, 300 pounds of fat, almost all think that it is because they do not persist, no perseverance, only after reducing a certain amount of weight and then rebound, in these heavily obese patients seem to only be able to reduce the weight of the method Is effective, even if only to reduce 1 kg, also think it is effective. In fact, there are many kinds of methods that can reduce weight, seem to be effective, but in medical terms there is a standardized definition of effective, generally speaking, whether a method can reduce weight, the first thing to see how much weight it can reduce, because each patient’s weight kilograms are different, so the same reduction of 20 kg, for weight 80 kg and 100 kg of friends mean completely different, so the standard used is excess weight Reduction rate, that is, the current weight – standard weight = excess weight, for example, a person 100 kg weight, according to the standard weight BMI = 23 to calculate the standard weight is 62 kg, then her excess weight is 100 – 62 = 38 kg, regardless of the method, for example, after acupuncture buried thread she reduced 4 kg, then her excess weight reduction rate is 4 /38=10.5%. After learning how to calculate the excess weight loss rate, how can we judge the effectiveness of the weight loss method? Generally speaking in the medical excess weight loss rate to “25% to be called effective, this is only the specific value of weight loss, really effective weight loss also need to be able to continue not to rebound, if the reduction of weight soon after the rebound, almost meaningless weight loss methods. You such as exercise, especially in the closed training of weight loss summer camp, large exercise, low calorie diet will almost always have a significant weight loss, but when they return to society, will soon return to the original weight, and almost always rebound more than the original weight, which is also our obese friends often talk about the more fat, we in surgery that the reduction of weight should be able to maintain at least 1 year, in order to be called Effective. Therefore, the only way to reduce enough weight and to maintain it for a long time is surgery, which can reduce more than 50% of the excess weight, or even reach an extremely effective 75% or more, and the patient can still maintain it for a long time after many years. These are unmatched by other methods. Of course it also depends on the remission of metabolic syndrome by various weight loss methods. Therefore, for patients with moderate to severe obesity, bariatric surgery is the only effective treatment for obesity and the metabolic syndrome caused by obesity.