The least invasive weight loss surgery, what is that? Weight loss surgery is known also as gastric or Bariatric surgery. It refers to special medical treatment for patients with obesity. The obesity level to get the treatment must be high by remembering that this procedure is quite risky. Therefore, it is not recommended to undergo this surgery procedure only for aesthetic purposes only. In general, weight loss surgery is divided into 4 types. Which is the least invasive among them? Here is the explanation.