If your breasts lack volume but you would rather add volume naturally with your own fat than with implants, fat grafting breast augmentation can be considered. It harvests fat from areas with enough fat, such as the abdomen, flanks or thighs, purifies it and grafts it into the breast. A feature is that it supplements breast volume while also refining unwanted fat at the harvest site, so the breast and overall body line can be considered together. What is fat grafting breast augmentation?
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What is fat grafting breast augmentation?
Fat grafting breast augmentation is surgery that harvests your own fat from the abdomen, flanks or thighs, purifies it through the necessary processes and grafts it into the breast.
Unlike implants, which enlarge the overall breast, a feature is that your own fat can add volume where it is needed.
Because fat harvesting is part of the procedure, rather than looking at the breast alone, the overall body can be designed by considering unwanted fat on the abdomen, flanks and thighs together with breast volume.
| Item | Features of fat grafting breast augmentation |
|---|---|
| Material used | Your own fat |
| Fat harvest sites | Abdomen, flanks, thighs, etc. |
| Breast volume | Supplemented by grafting fat where needed |
| Body change | Unwanted fat at the harvest site is refined at the same time |
| Areas of use | Overall volume, hollow upper breast, left–right asymmetry, etc. |
| Feel | A natural feel can be expected because your own fat tissue is used |
In other words, it is surgery that plans not just putting fat into the breast but also where to harvest fat and how much to graft into which part of the breast.
Why augment the breast with your own fat?
One of the biggest features of fat grafting breast augmentation is that it uses your own fat.
Because the tissue grafted into the breast is your own fat, feel and movement are relatively natural, and it can be considered when you want to supplement breast volume without an implant.
It is especially useful not only for overall breast size but also for finely supplementing specific areas, such as a hollow upper breast or a volume difference between the two breasts.
If you want to fill a hollow upper breast naturally
After childbirth, breastfeeding or weight changes, the concern is sometimes less overall breast size and more that the upper breast has lost volume and looks empty.
In this case, after checking the current breast shape, fat can be grafted into the deficient area to plan a line that flows naturally from the upper breast.
If breast asymmetry is your concern
The two breasts are never exactly the same.
But if one breast has noticeably less volume and the difference shows even when clothed, rather than grafting the same amount on both sides, each side can be designed differently based on the deficient side's volume.
If you want to refine detailed lines after implant surgery
Even after previous implant breast augmentation, certain areas of the breast may look hollow, or you may want to soften the lines around the implant a little more.
In this case, fat grafting can be used to supplement deficient soft tissue around the implant or refine detailed breast contours.
In a systematic review of 22 studies (3,565 patients) on cosmetic breast fat grafting, average retention of grafted fat was 62.4% and patient satisfaction was 92%. Complications occurred in 17.2%, with firmness (induration) being the most common.[1]
Related readingThe hybrid approach using implants and fat together is covered in "Hybrid breast augmentation: can cleavage and the upper breast line be designed too?" (Korean).
How is fat grafting breast augmentation performed?
Fat grafting breast augmentation proceeds broadly in three steps: fat harvesting → fat purification → grafting into the breast.
- Assess the body and decide the harvest site
First, the abdomen, flanks and thighs are examined to decide which areas can provide enough fat.
Rather than simply choosing the area with the most fat, how the overall body line will change after harvesting can also be considered.
- Purify the harvested fat
The harvested fat is not injected into the breast as is; it goes through a purification process to select fat suitable for grafting.
In fat grafting, it is important to minimize damage to fat cells during harvesting and processing and to obtain healthy fat.
- Graft fat into the breast areas that need it
The purified fat is grafted where needed, considering the current breast shape and the desired volume.
It can supplement overall breast size, or be placed precisely around areas that need it, such as the upper breast, inner breast or a breast that has relatively less volume.
So in fat grafting breast augmentation, rather than grafting a large amount of fat, it is important to graft in appropriate locations and layers, divided up so the grafted fat can settle stably.
What should be checked for a natural result?
One important concept in fat grafting breast augmentation is fat take (graft survival).
Take rate is the proportion of grafted fat cells that settle and are maintained in the new tissue. So the amount initially injected does not become the final breast volume; how stably the grafted fat takes can affect volume retention after surgery.
That is why, as much as how much fat is put in, the processes of harvesting and purifying fat and the method of grafting it into the breast are important.
When planning fat grafting breast augmentation, it is also good to check the following together.
Whether there is enough harvestable fat on the abdomen, flanks or thighs
Current breast size and overall shape
How hollow the upper breast is
Differences in size and shape between the two breasts
The degree of breast volume you want
How your overall body shape will change when fat is harvested
If you already have implants, the condition of the surrounding tissue and breast line
Especially in slim bodies, the amount of harvestable fat may be limited, so the surgical plan needs to consider both the desired breast size and the amount of fat that can actually be obtained.
Conversely, if breast volume has decreased after childbirth or breastfeeding while body fat on the abdomen or thighs has increased, a body design that considers both harvest sites and breast volume can be planned.
In a recent meta-analysis of 40 studies (5,684 patients), complications were reported in 25.9%; most were minor changes seen on imaging or felt by touch, and fat necrosis was the most common.[2]
Fat grafting breast augmentation: common myths and facts
| What many people think… | What the evidence shows |
|---|---|
| "All the fat put in stays in the breast." | Through the take process, part of it is absorbed. Sometimes it is planned in several sessions. |
| "Fat grafting has no side effects." | Fat necrosis, calcification and firmness can occur, so imaging follow-up is needed. |
| "Even slim people can go as big as they want." | The amount of harvestable fat sets the limit on volume. |
In fat grafting breast augmentation consultations, we look at "how much bigger you want to go" and "how much fat can be removed" together. Both numbers have to match for a satisfying result.
If your breasts lack volume but you would rather add volume naturally with your own fat than with implants, fat grafting breast augmentation can be considered. It harvests fat from areas with enough fat, such as the abdomen, flanks or thighs, purifies it and grafts it into the breast.
🔬 Supporting research
Peer-reviewed international journal articles that support this article. Click a title to open the PubMed abstract.
- Aesthetic surgery journal 2016 — cosmetic breast fat grafting, 22 studies · 3,565 patients Autologous Fat Grafting in Cosmetic Breast Augmentation: A Systematic Review on Radiological Safety, Complications, Volume Retention, and Patient/Surgeon Satisfaction. Key finding: average take 62.4%, complications 17.2%, satisfaction 92% In text [1] · PMID 27329661 · DOI
- Aesthetic surgery journal 2026 — breast fat grafting meta-analysis, 40 studies · 5,684 patients Autologous Fat Grafting for Breast Augmentation and Breast Remodeling: A Systematic Review and Meta-analysis of Complications, Radiologic Outcomes, Graft Retention, and Patient-Reported Satisfaction. Key finding: complications 25.9%, fat necrosis most common In text [2] · PMID 42697558 · DOI
🎬 Watch — Dr. Park Seong-Soo · BongBong Plastic Surgery
Related videos from BongBong Plastic Surgery's official channel and Dr. Park Seong-Soo's channel. Videos are in Korean and play on YouTube.
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8:21 Preventing breast fat grafting side effects: the principle of BiVOL for better take, explained with an orange (Korean) Dr. Park's channel · 2026.07.27 -
0:54 Breast fat grafting take rate: why weight management is key (Korean) Dr. Park's channel · 2026.03.11 -
1:12 Volume up! A real story of breast fat grafting at BongBong (Korean) BongBong official · 2016.12.07
Frequently asked questions (FAQ)
Who is fat grafting breast augmentation suitable for?
It can be considered if you want natural breast volume using your own fat without implants, want to supplement a hollow upper breast or left–right asymmetry, or have lost breast volume after childbirth or breastfeeding. However, whether it is actually possible should be confirmed by checking the amount of harvestable fat and your current breast condition.
Can fat be taken from the abdomen and put into the breast?
Yes. Fat can be harvested from areas where it can be obtained — the abdomen, flanks or thighs — purified and grafted into the breast. So a feature of fat grafting breast augmentation is that breast volume and the shape of the harvest site can be considered together.
Can uneven breasts be corrected with fat grafting?
If one breast has relatively less volume, after checking the difference between the two, fat can be placed where needed in the deficient areas to balance them.
Is the initial size maintained after fat is grafted?
Grafted fat goes through a take process as it settles in the tissue. So rather than assuming the volume right after grafting is maintained, it is important to plan long-term breast volume considering recovery and fat take.
Can fat grafting be done on breasts that already have implants?
Depending on the current implant and breast tissue, fat grafting can be used. If the soft tissue around the implant is deficient or you want to refine the contour of certain areas, fat can be used to refine detailed breast lines. Fat grafting breast augmentation harvests fat from the abdomen, flanks or thighs, purifies it and grafts it into the breast, and can be considered when you want natural volume and feel using your own fat. It can finely supplement not only overall breast volume but also a hollow upper breast, uneven breasts and volume lost after childbirth or breastfeeding, and a feature is that the overall body line can be designed by also considering unwanted fat at the harvest site.
📖 References
Click a [number] in the text to jump to its source, and ↩ to return. Only papers whose title, journal and year were verified on PubMed are listed.
- ↩ Groen JW, Negenborn VL, Twisk JW, Ket JC, Mullender MG, Smit JM. Autologous Fat Grafting in Cosmetic Breast Augmentation: A Systematic Review on Radiological Safety, Complications, Volume Retention, and Patient/Surgeon Satisfaction. Aesthet Surg J. 2016;36(9):993-1007.PMID 27329661 · DOI— cosmetic breast fat grafting, 22 studies · 3,565 patients — average take 62.4%, complications 17.2%, satisfaction 92%
- ↩ Gentile P, Sterodimas A. Autologous Fat Grafting for Breast Augmentation and Breast Remodeling: A Systematic Review and Meta-analysis of Complications, Radiologic Outcomes, Graft Retention, and Patient-Reported Satisfaction. Aesthet Surg J. 2026.PMID 42697558 · DOI— breast fat grafting meta-analysis, 40 studies · 5,684 patients — complications 25.9%, fat necrosis most common
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