Liposuction, also known as lipoplasty, is a type of surgery that removes fat from the human body in an attempt to change its shape. Evidence does not support an effect on weight beyond a couple of months and it does not appear to affect obesity related problems. Serious complications include but are not limited to death, deep vein thrombosis, organ perforation, bleeding, and infection. While the suctioned fat cells are permanently gone, after a few months overall body fat generally returned to the same level as before treatment. This is despite maintaining the previous diet and exercise regimen. While the fat returned somewhat to the treated area, most of the increased fat occurred in the abdominal area. Visceral fat - the fat surrounding the internal organs - increased, and this condition has been linked to life-shortening diseases such as diabetes, stroke, and heart attack.