Isn’t weight loss surgery just a surgery? Why do we need so many specialists to consult together? Is it a waste of resources? If you think so, you are very wrong. In bariatric surgery, the MDT multidisciplinary model is very important! Do you still don’t know what MDT multidisciplinary model is? MDT (Multidisciplinary Team) is a clinical multidisciplinary work team. The concept was first introduced in the United States in the 1990’s, where multiple disciplines from more than two related disciplines form a fixed working group to propose the best treatment plan for a particular systemic disease through regular meetings, and the treatment plan is then implemented by the related disciplines individually or jointly. Why is the involvement of this model necessary in bariatric metabolic surgery? Because obesity is sometimes not a single disease, in addition to obesity itself, many overweight patients have diabetes, hypertension, hyperlipidemia, fatty liver, cardiovascular disease, sleep apnea syndrome and many other conditions at any time, which requires the consultation of multiple departments in order to make the most comprehensive assessment of the patient. The MDT multidisciplinary model was initiated for Xiao Yun, a young girl who came to seek surgery to reduce her weight, because of her special condition, and the participating departments included anesthesiology, ICU, respiratory medicine, cardiovascular medicine, endocrinology, pediatrics and other departments to conduct a comprehensive examination and evaluation of Xiao Yun’s condition. After the consultation, it was found that in addition to obesity, Xiao Yun also had hyperuricemia, hyperinsulinemia, hyperlipidemia, fatty liver, sleep apnea syndrome, and many other conditions brought about by obesity, and she was adjusted for a week before the surgery. Therefore, for weight loss surgery, MDT multidisciplinary model is essential to ensure the safety and effectiveness of surgery for some patients with complicated conditions!