Key takeaways
- Judge a facial fat graft at 6 to 12 months against your pre-surgery photos, since volume may still be shrinking at 3 months.
- How much stays: across 27 studies that measured volume directly, retention ranged from 26% to 83%, with an average of 47%.
- In one 3D-scan study of 30 people, 37% to 49% of the injected fat remained at 1 month, and it kept dropping slightly through 12 months.
- Emergency signs: blurred vision or slurred speech after fat grafting means going to an emergency room, even a day later.
You can judge how much facial fat graft has "taken" at around 6 months at the earliest, and ideally closer to 12 months. Early on, swelling adds to the volume you see, and part of the transferred fat is gradually absorbed over the following months. Losing fullness at 1 to 3 months doesn't, by itself, mean your graft failed.
Why Does Your Face Look Flatter Weeks After Fat Grafting?
Why Does Your Face Look Flatter Weeks After Fat Grafting?
A flatter look a few weeks out isn't proof that the graft didn't take. Transferred fat has to pick up a new blood supply in its new spot to survive, and the portion that doesn't is slowly absorbed by your body. That's why not all of the injected fat stays, even when everything goes as planned.
Right after surgery, what you see in the mirror is the grafted fat plus swelling. In a study that followed 30 people treated for facial asymmetry with 3D scans, only 37% to 49% of the injected volume was left at 1 month. In other words, the biggest drop happened in the first month.
Why Does Your Face Look Flatter Weeks After Fat Grafting?
So if you compare your face at 1 month with how it looked right after surgery, it can seem like far more was lost than really was. Your pre-surgery photos make a fairer baseline.
When Can You Judge Fat Graft Results?
When Can You Judge Fat Graft Results?
After about 6 months, the drop in volume tends to slow down, and the result is usually read at around 12 months. Most studies on facial fat grafting also re-measure volume somewhere between 6 and 12 months.
In the same 30 people, the share of injected fat that remained was 37% to 49% at 1 month, 34% to 45% at 3 months, 31% to 43% at 6 months, and 31% to 41% at 12 months. The decline was small after the first month, but it didn't stop completely until the 12-month mark.
Another record followed 22 people who had an average of 18 mL injected. They had 11.6 mL left at 3 months, 9.1 mL at 6 months, and 8.0 mL at the final check (about 12 months on average). Their volume dropped noticeably between 3 and 6 months, too. If you treat your 3-month look as the final result, further loss can feel like a letdown.
When Can You Judge Fat Graft Results?
| Time after surgery | What you'll likely notice | What to do |
|---|---|---|
| First month | Swelling makes it look full, then it shrinks quickly | Don't compare with day one |
| 1 to 3 months | Volume keeps easing down after the swelling settles | Take photos in the same light and angle |
| 3 to 6 months | Some people lose noticeably more | Don't call it final yet |
| 6 to 12 months | Changes get smaller | Compare with pre-surgery photos |
Keep in mind that everyone's face is different, so the photos you take before surgery are your real reference point.
Why Does Fat Graft Retention Vary So Much?
Why Does Fat Graft Retention Vary So Much?
How much fat stays depends on how the fat was handled and on the face receiving it. A pooled analysis of 27 studies with 1,011 patients, all using direct volume measurements, found retention anywhere from 26% to 83%, with an average of 47%. That's a wide range for what's called the same procedure.
- How the fat is filtered: the 30 people above were split across three processing methods. At 12 months, 41% remained with cotton-pad filtration, 34% with centrifugation (spinning the fat to separate oil and fluid), and 31% with simple settling.
- Why the face looked hollow: in faces that lost volume over time (acquired atrophy), estimated retention at 12 months was 43%, lower than the 64% seen in mixed causes.
- A facelift in the picture: among 26 women who had fat grafted to the midface, 23.8% remained in those who'd had a facelift, compared with 47.6% in those who hadn't.
Because of all this, someone else's "I kept X percent" doesn't tell you much about your own face. Results differ from person to person, and your own before-and-after photos are what count.
Which Changes Are Normal, and When Should You Get Help?
Which Changes Are Normal, and When Should You Get Help?
Volume easing down as swelling fades is part of the normal course described above. In a review of 4,577 facial fat graft patients, 2.27% had reported complications, and uneven results between the two sides (asymmetry) were the most common, in 74 people. Skin irregularities (14), prolonged swelling (4), fat necrosis (3), and infection (2) were also reported. Fat necrosis means transferred fat that didn't survive and hardened into a firm lump.
Contact the clinic that treated you and get seen if:
- The treated area turns red and warm and keeps getting more painful
- You notice pus or fluid draining, or you have a fever
- A firm lump appears and grows, or it hurts when you press it
Rarely, transferred fat can block a blood vessel. In a review of 61 such cases, 66% of symptoms started right after injection or within an hour, 24% between 2 and 23 hours, and 10% after a day or more. None of the 26 people whose eye artery was blocked got their vision back, and 6 people died.
Go to the nearest emergency room right away if you have blurred vision or vision loss, or eye pain. The same goes for slurred speech, numbness or weakness in your arms or legs, a headache, or confusion. Never wait for these symptoms to pass on their own.
Should You Add More Fat, and When?
Should You Add More Fat, and When?
Decide on another round of fat grafting after you've compared your 6- to 12-month look with your pre-surgery photos. If more fat goes in before that, the fat that's still shrinking and the new fat get mixed together, and it's harder to tell what actually stayed.
Some studies suggest a second session may hold onto more volume, but the difference wasn't clear-cut in the pooled analysis. Whether you add more fat or look at another option depends on which areas lost volume and how much, and your provider can walk you through that once your result has settled.
Planning Around a Trip to Seoul
If you're thinking about a follow-up visit during a trip to Seoul, flying itself isn't a reason to postpone treatment, unless you had sedation that day. Most procedures don't transform your face in a single visit. Changes tend to show gradually, and one visit doesn't replace the timeline your provider sets for judging your result.
Since a fat graft takes 6 to 12 months to settle, much of that wait will likely happen after you're back home. You can send photos and questions through the clinic's WhatsApp. If you notice redness, pain, a growing lump, or any vision or speech problem, see a local doctor or hospital first instead of waiting for a reply.
What to Bring to Your Fat Graft Check-Up
Take front and side photos at 3, 6, and 12 months after surgery, in the same light and from the same angle. That makes it much easier to see how much volume has stayed. At your consultation, ask "Where did I lose volume in these photos, and is it a spot where more fat makes sense?" That one answer makes your options easier to compare.
STON Clinic is in Myeongdong, Seoul, inside Lotte Hotel Seoul near Euljiro 1-ga Station. When you message on WhatsApp, include your surgery date, the areas that were grafted, and your pre-surgery and most recent photos.
If this raised a question about your own skin
Ask a questionReferences
- Pooled analysis of how much fat stays after facial grafting across 27 studies — Aesthetic Plast Surg, 2021 — PubMed Central
- Results and complications in 4,577 facial fat graft patients — JPRAS Open, 2019 — PubMed Central
- Trial comparing three fat-processing methods with 3D scans from 1 to 12 months — JAMA Facial Plast Surg, 2018 — PubMed Central
- Fat graft volume in 22 people measured at 3, 6, and 12 months — J Plast Reconstr Aesthet Surg, 2016 — PubMed Central
- Long-term midface fat graft volume and the effect of age and facelift — Aesthet Surg J, 2014 — PubMed Central
- Fat graft results by cause of facial volume loss — J Plast Reconstr Aesthet Surg, 2023 — PubMed Central
- Review of adding PRP or stem cells to facial fat grafts — Aesthet Surg J, 2022 — PubMed Central
- Symptoms and outcomes in 61 cases of blocked arteries after facial fat grafting — Aesthetic Plast Surg, 2023 — PubMed Central
Frequently asked questions
Q. Does adding PRP or stem cells make more fat graft stay?
A. It's not clear yet that adding PRP or stem cell components makes more fat stay. In a review of 27 studies, the supplemented group kept more volume in 13 of 22 studies and reported higher satisfaction in 5 of 16. The quality of 20 of the 27 studies was rated weak, so more research is needed.
Q. Does fat graft retention drop with age?
A. One study suggests it can. Among 26 women who had fat grafted to the midface and were measured with 3D imaging, those under 55 kept an average of 53.0%, compared with 31% in those 55 or older. It was a small study from one practice, so age alone doesn't predict your result.
Q. My face looks uneven 3 months after fat grafting. What should I do?
A. At 3 months, it's still too early to call unevenness after fat grafting your final result. In a review of 4,577 patients, asymmetry was the most commonly reported complication (74 people). Keep taking photos in the same light and angle past 6 months, and if the difference doesn't change, talk to the clinic that treated you.
Q. Is a firm lump at the fat graft site normal?
A. A firm lump at a fat graft site is worth showing to your provider, even if it's small and painless. In a review of 4,577 patients, fat necrosis was reported in 3 and infection in 2, so both are rare. If the lump grows, hurts when pressed, or turns red and warm, get it checked right away.
Q. Is fat grafting to the forehead, temples, or between the brows riskier?
A. These areas call for extra attention to blocked-vessel warning signs. In a review of 61 cases where fat blocked an artery, the area between the brows and multiple areas at once were most common at 26.2% each, followed by the temples (16.4%) and forehead (14.8%). It's a collection of reported cases, so it doesn't compare actual rates by area.
Q. Why do fat graft retention numbers differ so much?
A. Fat graft retention numbers depend on when and how volume was measured. A review of 27 studies found the measurement method had a significant effect on reported retention. Shorter follow-up can make it look like more stayed, and photo-only assessments leave more room for judgment calls. Your own before-and-after photos are a better guide.
Q. Does a second fat graft session hold more volume?
A. Possibly. A review of 27 studies saw a trend toward better retention with second sessions and in people born with facial differences, but it wasn't a clear-cut difference. Checking your first result at 6 to 12 months before deciding makes the comparison much easier.
Jangju Kim Senior Director
JANGJU KIM
Dr. Jangju Kim is a clinic director at STON Clinic, LOTTE HOTEL in Myeongdong.
Career / Education
- 현) 스톤클리닉 명동 롯데호텔 원장
- 경희대학교 의과대학 졸업
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