Nowadays, obesity is no longer a personal physical problem, it has developed into a disease and a serious social problem. Obesity causes people’s health index to decline, and obesity causes medical expenses to increase, adding a lot of pressure to social medical care. Data show that the waist circumference of Chinese men has risen by more than 10% in 20 years, and the proportion of obesity has also increased significantly. Not only the number of obese adults is increasing, but also the number of obese minors is growing rapidly, thus the mortality rate caused by obesity is also increasing in adults. Obesity and cancer are inseparable: major medical journals have published literature on obesity as a cause of cancer. Earlier data from a study in The Lancet showed that obesity may increase the risk of uterine cancer by 62%, gallbladder cancer by 31% and kidney cancer by 25%. A recent paper published in the Journal of Clinical Oncology, “Global Trends in Overweight and Cancer Burden,” provides a comprehensive summary of the occurrence of tumors due to overweight obesity and the resulting disease burden. The study even points out that in 2012 there were more than 540,000 cases of cancer that could be attributed to being overweight or obese, accounting for 3.9% of all cancers, which is not the most frightening, while the data also shows that behind this 540,000 figure, there are hundreds of millions of overweight cancer “reservoirs.” The problem of obesity is more terrible than people think, and now obesity has been called the second preventable cause of death after smoking, and now the direct and indirect deaths caused by obesity are up to 3.4 million per year worldwide! Obesity is a potential cause of many cancers, such as post-menopausal breast cancer, colorectal cancer, uterine cancer, esophageal cancer, gallbladder cancer, kidney cancer, liver cancer, ovarian cancer, pancreatic cancer, stomach cancer, thyroid cancer, meningioma and multiple myeloma, all of which are related to obesity. Obese women are more likely to develop ovarian cancer, endometrial cancer, bladder cancer and postmenopausal breast cancer. Men who are obese are more likely to develop prostate cancer. The more severe the obesity, the higher the chance of developing the above cancers. However, obesity is not only the above! Obesity can also cause type 2 diabetes. 80% of people with diabetes are obese or overweight, and the incidence of diabetes is higher in obese people! Obesity also leads to sleep apnea syndrome, snoring, breathing difficulties, daytime lethargy, this condition is also very easy to sleep at night when sudden death! Obesity also leads to fatty liver, cardiovascular disease, bone and joint disease, hypertension, hyperlipidemia, polycystic ovary syndrome and other problems! After reading all this is not very desperate? But obesity can be reversed! Weight loss has a great impact on health, weight loss can significantly improve the phenomenon of sleep apnea syndrome, and fatty liver, as well as the reduction of pressure on the bone and joint and other benefits, weight loss is very necessary for obese people. But some obese or overweight people, due to excessive weight, many daily weight loss methods including brisk walking, running, cycling and so on these exercises are not suitable, not only to the body joints cause too much damage, at the same time, these traditional weight loss methods have slow results, easy to regain some disadvantages. For some morbidly severe obesity and some obesity has appeared some of the accompanying symptoms of patients, it is recommended to use weight loss metabolic surgery to lose weight, this way is the World Health Organization recognized for obesity long-term effective treatment, surgery through the reconstruction of the patient’s gastrointestinal digestive system to achieve the ultimate purpose of weight loss, surgery effect is remarkable, surgery about a year can lose 60% to 80% of the body’s excess weight It is a multi-benefit weight loss program that can alleviate the complications of obesity at the same time!