In short. Fat, dermis and implants are used when filler has reached its limit. They differ in how predictable the volume is, how they feel and whether removal is possible.
Key points
- An injectable adds material that can be removed.
- A graft or an implant adds material that cannot, and offers in exchange a change that does not wear off.
- Where an injectable still reaches the finding, it is the step that keeps the others available.
When an injectable has reached its limit, three surgical approaches remain, and they are not variations on one another. Each moves different material into the lip, and each trades the ability to undo the change for something the injectable could not provide.
Fat grafting, which is soft and partly survives
Fat is taken from elsewhere on the body and placed into the lip. It is your own tissue, it feels like the lip it is placed in, and it can soften a border as well as add volume. Its weakness is predictability: part of what is transferred is absorbed, the amount varies between people, and the result is described as a range. More than one session is common. It is also the least controllable of the three, which is why it is used for softness and fullness rather than for a precise edge.
Dermis and fascia grafts, which hold shape better
A strip of tissue is taken from a donor site, usually hidden in a crease or a hairline, and placed in the lip to give volume and a border. These hold their volume more reliably than fat and give more control over the shape of the edge. The trade is a second surgical site with its own scar, and a result that is fixed rather than adjustable. Neither fat nor a graft can be dissolved, so both are decisions taken once rather than steps in a series.
Implants, which are predictable and settle in a plane
A shaped implant places a known volume in a chosen plane, which makes the immediate result the most predictable of the three. How it behaves over years depends on the material and the plane it occupies, and an implant can become visible or move. It leaves the least room for adjustment afterwards, and removing it is a second operation rather than a reversal.
What none of them does
None of them shortens the skin above the lip, changes where the border sits, or corrects a difference produced by muscle. They add tissue to the lip, which is the finding they answer. Where the complaint is a long upper lip, the operation that changes it removes skin rather than adding material, and where the complaint is over-fullness after years of injectables, neither is the answer: dissolving is a smaller and reversible step that should come first. The route follows the finding, and the reversibility follows the route.
Reversible first, and the trade stated
An injectable adds material that can be removed. A graft or an implant adds material that cannot, and offers in exchange a change that does not wear off. Where an injectable still reaches the finding, it is the step that keeps the others available.
Before a graft or an implant is planned
- Any active infection, cold sore or unhealed sore at the site or the donor site.
- A history of a scar that healed badly, or of a reaction to previous filler.
- Teeth, bite or jaw findings, which no lip operation addresses.
Frequently asked questions
Why would I choose a graft or an implant rather than filler?
There are three reasons, and they are worth separating. The first is that filler has reached its ceiling, or is being repeated so often that the visits have become the problem. The second is that the lip has been treated for years and the tissue has changed, so what is wanted is a stable result rather than another adjustment. The third is a preference for a change that does not wear off. None of these makes a graft better than filler; each trades reversibility for something else.
How much of a fat graft survives?
Not all of it, and the proportion is not fully predictable, which is why the result is described as a range rather than a figure. Some of the transferred fat is absorbed over the first months, and what remains is soft and behaves like the tissue around it. A second session is common, and it is planned for from the start rather than treated as a failure. Fat is the softest of the options and gives the least control over the final shape.
If I do not like an implant, can it be removed?
It can be taken out, but removal is a second operation rather than an undo. The tissue plane the implant occupied does not return to what it was, and the lip can look and feel different afterwards. That is the reason an implant is chosen as a settled decision rather than as a trial, and the reason a reversible injectable is usually tried first, before a permanent route is considered at all.
Risks & Limitations
- A dissolvable gel filler can be broken down with an enzyme. Skin or tissue removed by an operation cannot be put back.
- Bruising and swelling after a lip injection are common and usually settle over one to two weeks.
- Repeated filler over years can accumulate in the lip, and dissolving may not return it to its untreated state.
- Every operation on the lip leaves a scar, and the lines above the border and the way the mouth closes can change.
When to Seek Care
- Severe pain, blanching or mottled skin during or after a lip injection, or a change in vision.
- A sore, ulcer or white patch on the lip that has not healed in a few weeks.
- A lip that is numb, or a mouth that no longer closes, after an operation.
- Fever with spreading redness, warmth or discharge, or a wound that opens.
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
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.