No, liposuction cannot be used to treat obesity. Liposuction removes localized areas of fat from specific areas of your body. However, it is not a full-body weight loss method. While the fat removed by liposuction is permanently gone, your body can regrow fat in the areas from which it was removed. Obesity is a complex condition, and its treatment should consist of a combination of diet, exercise, behavioral modification, and, based on the individual case, medication or surgery.