The third problem, and the one people least expect. Weight loss does not only leave skin behind — it removes volume from places that looked better with it, and the result reads as flat, hollow or lacking volume rather than loose.
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It matters because it is regularly mistaken for loose skin, and the two are not addressed the same way.
Where it shows
- Buttocks. Loss of projection, so clothing sits differently and the shape flattens. Very common after large losses.
- Breasts. Emptying, particularly of the upper pole. Covered in more detail on the breast page.
- Face and temples. Outside the scope of this site, but the most commonly noticed and the reason people say weight loss aged them.
- Hips and upper thighs. Hollowing at the side of the hip, which changes the line of the leg.
How to tell it from loose skin
Loose skin gathers and folds. Lost volume does not fold — the surface stays smooth but the shape beneath it is gone. Pinching gives the answer: if there is nothing much to pinch and the area simply looks flat, it is volume, not skin.
The two coexist. A buttock can be both flat and covered in loose skin, and the combination is common after very large losses.
What helps
This is the area where training does the most good of anywhere on the body. Glute and leg work adds volume exactly where it has been lost, and for buttock flattening it is genuinely the first-line answer, not a consolation. People who train seriously after major weight loss often need nothing further here.
What does not help: creams, supplements, and anything claiming to restore volume topically.
When it stops changing
Volume changes track weight, so it continues as long as weight does. It also improves with training on a timeline of months to years, which is longer than the skin timeline — another reason not to decide early.
The readiness assessment covers timing.
What volume restoration involves →
For the operations themselves, Dr Kumar’s procedure guides cover each one in detail, including staging, Medicare and recovery.