In short. The situations in which a transfer cannot deliver what is wanted, what to do instead in each case, and why doing nothing is a legitimate answer

Key points

  • Not every hollow is a problem to be corrected.
  • A hollow that has been there for years and does not trouble you, a contour difference nobody else notices, and a change that photographs badly but looks fine in a mirror are all situations where the reasonable answer is to leave them alone.
  • The costs are real: a donor scar, a second uncomfortable area, an unpredictable volume and a result that cannot be reversed.

A site that describes an operation without saying when not to have it is selling rather than explaining. Fat grafting is a good answer to a limited problem in healthy tissue, and a poor answer to several problems patients bring to it unaware. What follows is the no, with the better answer named in each case. None is a reason to be turned away.

When the change needs to be large, precise or removable

A transfer cannot produce a large increase, and it cannot produce an exact one. Where the wish is a large change in volume, a structural implant is the instrument, because the volume available from a harvest and the proportion that holds are both limited. Where the wish is a precise change, an implant or a filler can be placed to a measurement in a way a transfer cannot. And where the wish is for something that can be undone, a filler is reversible and a transfer is not.

When the tissue needs lifting rather than filling

Fat adds volume where it is placed and does not raise anything. Where the complaint is that an area has descended or that skin has loosened, the operation that addresses it is a lift, with or without volume placed at the same time. Adding fat to tissue that has descended tends to make it heavier rather than better.

Doing nothing is a real answer

Not every hollow is a problem to be corrected. A hollow that has been there for years and does not trouble you, a contour difference nobody else notices, and a change that photographs badly but looks fine in a mirror are all situations where the reasonable answer is to leave them alone. The costs are real: a donor scar, a second uncomfortable area, an unpredictable volume and a result that cannot be reversed.

When the tissue cannot hold a transfer, or the weight is still moving

A recipient area that is scarred, irradiated, previously operated or very thin holds a transfer less predictably, and where it cannot hold one reliably, a different material or a structural approach is the better answer. A patient whose weight is still moving is also poorly served, because the result will change as they do. And where the expectation is symmetry, the answer is that a transfer improves asymmetry and does not resolve it.

Walk away from these offers

  • A promised volume, a promised survival figure or a promised symmetry.
  • A transfer offered as a skin treatment or as a lift, when those are different claims and different operations.
  • A plan that does not ask about your weight history, examine the recipient area, or mention the donor site.

The value of an assessment is that it can end in no. A hollow that can be lived with, a complaint that a different operation answers better, and a weight that needs to settle first are findings rather than refusals, and each beats an operation that could not deliver what was wanted.

Related reading

Frequently asked questions

What kind of change can a transfer not deliver?

A large one, an exact one, or one that can be taken back. The volume available from a harvest and the proportion that holds are both limited, so a large increase needs a different operation. Placement cannot be measured the way an implant or a filler can. And nothing dissolves your own fat, so a change made with it cannot be reversed.

If the problem is descent, what is the operation that answers it?

A lift. Fat adds volume where it is placed and does not raise anything, so where an area has descended or skin has loosened, the operation that addresses the complaint is one that repositions tissue, with or without volume added at the same time. Adding fat to tissue that has descended tends to make it heavier rather than better.

How do I know whether a hollow is worth treating at all?

If it has been there for years and does not trouble you, if nobody else notices it, and if it photographs badly but looks fine in a mirror, then leaving it alone is a reasonable answer. The costs of a transfer are real, and weighing a donor scar, a second uncomfortable area and a volume that cannot be reversed against a small change is a good decision rather than a timid one.

Risks & Limitations

  • How much of a fat transfer will survive cannot be predicted, and a second session is common rather than a sign that the first failed.
  • Transferred fat cannot be dissolved and cannot be selectively removed, so the change is not reversible the way a filler is.
  • The harvest leaves a second area bruised and held in a garment, with a permanent scar and a possible contour change.
  • The result is judged from around the third month and settles by the sixth, and it changes with weight afterwards.

When to Seek Care

  • Difficulty breathing or chest pain: seek emergency care immediately.
  • Increasing pain or swelling at the donor area or the treated area, with spreading redness or fever.
  • A wound that opens, or discharge from an incision.
  • A new lump at the treated area that is painful, hot or growing.

References & Further Reading

  • American Society of Plastic Surgeons (ASPS) — procedure and safety guidance
  • National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
  • Cochrane Library — systematic reviews
  • Chinese Medical Association Plastic Surgery Branch — clinical guidance

Medically reviewed by Tongchun Mao, MD (毛彤春), Deputy Director & Head of Aesthetic Surgery. Last reviewed: 19 September 2026.

This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.