Liposuction is not a procedure to eliminate obesity, it is an operation that effectively removes locally accumulated fat (lower abdomen etc.). Many people misunderstand this as well as the general public, as well as non-professional physicians.
At the American Society of Plastic Surgery, liposuction is not recommended for people with a BMI index of 30 or more. Such a person must first lose weight with diet therapy. As liposuction for patients with a BMI of 30 or more, the risk of complications (deep venous thrombosis and side effects of anesthesia) also increases, so careful response is required.