Medically reviewed by Dr Sin Yong · Last reviewed · 6 min read
Published 17 October 2026 · Reviewed by Dr Sin Yong
Questions after fat grafting or liposuction fall into a few groups: whether a graft can be reversed, whether the fullness is fat or filler, lumps and weight gain, loose skin and dents after liposuction, and what microliposuction is. These 15 answers are brief; each links to the fuller page.

Not like filler. Grafted fat that has taken is living tissue, so hyaluronidase has no effect on it. An excess can be reduced from the surface with energy-based treatment such as the Time Freeze Laser LCLR®, or removed with microliposuction when it is large and stable.
Read the full page →No. Hyaluronidase breaks down hyaluronic acid filler only. Many overfilled faces hold both filler and fat, so ultrasound is used to see which is present before anything is dissolved.
Read the full page →The fat that will not survive is absorbed over the first few months. The result is usually judged once swelling has gone and the surviving graft has settled, and after that it changes mainly with body weight.
Read the full page →More fat survived than was planned, the graft has grown with weight gain, filler is also present, or the face has descended under the extra weight. The cause is assessed first because each is treated differently.
Read the full page →Grafted fat that has taken behaves like the fat it came from, so it enlarges with weight gain. This is called fat graft hypertrophy.
Read the full page →Usually fat necrosis or oil cysts, where some grafted fat did not survive. Uneven graft can also feel lumpy. A new, painful or growing lump should be examined.
Read the full page →The lower eyelid skin is thin, so a little extra graft or a small lump shows easily as a ridge or bulge. It is told apart from filler and eye bags before anything is done.
Read the full page →Your treatment history is the starting point, and ultrasound usually confirms it. Filler and fat look different on ultrasound, and many faces turn out to have both.
Read the full page →Liposuction removes fat but does not tighten skin. Whether the skin shrinks back depends on age, skin quality, stretch marks and previous weight change.
Read the full page →Mild to moderate laxity often responds to energy-based tightening such as the VF Lift – Vertical Figure Lift. Marked excess skin needs a surgical opinion.
Read the full page →A true dent means fat is missing, so it usually needs filling, often by fat grafting. Energy-based treatment can soften the edges and tighten the skin around it but cannot replace lost volume.
Read the full page →Swelling makes most results look uneven for months. Lasting unevenness can come from uneven graft survival, lumps of fat necrosis, dents at the liposuction site or loose skin.
Read the full page →Small-volume liposuction through fine cannulas. In Singapore it is regulated as liposuction: it must be done by an MOH-accredited doctor in an approved setting, with a cooling-off period before surgery.
Read the full page →No. Laser liposuction places a fibre under the skin and removes fat by suction. Time Freeze Laser LCLR® is applied from the surface and remodels superficial fat gradually while tightening skin.
Read the full page →Removed fat does not come back, and the face loses more volume with age, so hollowing can appear years later. Lean areas are supported rather than reduced further.
Read the full page →“Grafted fat is living tissue. The first question is never how to dissolve it, but what exactly is there and how much is too much.”
Dr Sin Yong

Answers are brief by design and condensed from the linked pages, where the reasoning, caveats and references sit. They are general information and not a substitute for an examination; a consultation with Dr Sin Yong decides what, if anything, is advised. If something feels wrong after a treatment, read the warning signs and contact the clinic.
1. Schiraldi L, Sapino G, Meuli J, et al. Facial fat grafting (FFG): worth the risk? A systematic review of complications and critical appraisal. J Clin Med 2022;11(16):4708. Publisher
2. Wortsman X. Identification and complications of cosmetic fillers: sonography first. J Ultrasound Med 2015;34(7):1163–1172. PubMed
3. Ministry of Health Singapore. Liposuction regulatory framework. MOH
4. Ahmed M, Shraim B, Al-Matwi M, et al. Comparison of complications in isolated aesthetic liposuction procedures across different techniques: a systematic review and meta-analysis. Eur J Plast Surg 2025;48:8. Publisher
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