Does fat come back where liposuction was done?

This is a question I often hear in liposuction consultations: “If I gain weight again afterward, won’t the fat come back in the same place?” The question needs to be split in two: whether the treated area itself fills back up, and whether the total amount of fat in the body increases again.

First, the treated area. In a 2011 US study, 32 women of normal weight were randomly divided: 14 had small-volume liposuction of the thighs, hips and lower abdomen, and 18 were followed for 1 year without surgery. Both groups agreed not to change their lifestyle. Even after 1 year, thigh fat remained reduced. Because liposuction removed the fat cells themselves, the area did not return to its former thickness.

Looking at the body as a whole, though, the story changes. In the same study, body fat percentage fell by 2.1% 6 weeks after surgery, but after 1 year, there was no longer a significant difference from the group without surgery. The researchers interpreted this as the lost fat being restored in the abdomen. A systematic review published in 2015 (10 prospective studies, 231 women) found something similar. Body weight and fat mass decreased 1–2 months after surgery, but in studies that followed people for 3 months or longer, the difference did not last.

This means the body tends to defend the amount of fat it originally had. So liposuction is less a surgery for losing weight and more a surgery that changes where fat settles. The treated areas become places that gain less, but if your lifestyle stays the same, fat settles in the remaining areas.

This is where exercise comes in. In a 2012 Brazilian study, 36 women of normal weight who had small-volume liposuction of the abdomen were divided into a group that exercised for 4 months starting 2 months after surgery and a group that didn’t. In both groups, the subcutaneous fat of the treated abdomen stayed reduced. But visceral fat increased by 10% in the group that didn’t exercise and did not increase in the group that did. The group that didn’t exercise also used less energy per day.

However, all of these studies involved women of normal weight who had small volumes removed, and follow-up lasted 6 months to 1 year. It’s hard to apply the findings directly to people who have larger volumes removed or who weigh more. Even so, the direction is clear. The treated areas stay reduced, and the rest is decided by your weight and lifestyle. That’s why I consider getting back to exercise after recovery part of the result. When to start and what kind of exercise to do is decided at your follow-up visits based on how you’re recovering.