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October 23, 2026
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Breast fat grafting is generally considered a safe procedure when performed by an experienced, accredited doctor. Published studies report major complications such as infection and hematoma in under 1% of cases. Because it uses your own fat, there is no implant to rupture, leak or be rejected. It still carries its own risks, including oil cysts, calcifications, fat necrosis, asymmetry and partial fat loss. It typically adds about 1 to 1.5 cup sizes and is not suitable for people without enough donor fat.
Key takeaways
- Major complications (infection, hematoma) are reported in under 1% of cases.
- Typical increase: 1 to 1.5 cup sizes.
- About 60 - 70% of injected fat is retained long term. The rest is reabsorbed.
- Oil cysts and calcifications can appear on mammograms and may look like tumours. Tell your radiologist about your procedure.
- In Singapore, only MOH-accredited liposuction doctors may perform fat grafting.
- Technique and the doctor's experience with breast anatomy strongly influence risk.
How does breast fat grafting work?
Breast fat grafting is a two-stage procedure:
- Harvesting: Fat is removed from a donor area, commonly the abdomen or thighs, by liposuction.
- Injection: The fat is purified and loaded into syringes. It is then injected in thin layers into the breast through fine cannulas to build volume and shape.
Because the fat is your own tissue, there is no risk of implant rupture, leakage or shifting. Immune rejection is also not expected. The donor area is also contoured.
"Breast fat grafting utilises your own body fat, which eliminates the risks of ruptures, leaks or shifts usually associated with implants," says Dr Ivan Puah, Medical Director at Amaris B. Clinic.
Breast fat grafting vs breast implants
| Surgery | Breast implants | Breast fat grafting |
|---|---|---|
| Cost in Singapore | SGD 12,000 - SGD 20,000 | From SGD 5,000++ onwards |
| Best for | Larger increases (2+ cup sizes) | Subtle, natural increases (1-1.5 cups) |
| Material | Silicone or saline | Your own fat |
| Longevity | Often 10-15 years; may need replacement or revision | Surviving fat is permanent, but volume can change |
| Feel | Firmer; implant edges may be visible in some patients | Softer |
| Recovery | About 4-6 weeks to full recovery | Days to return to routine; weeks for swelling to resolve |
| Body contouring | None | Donor area is slimmed |
| Key risks | Infection, rupture, capsular contracture, breast implant illness, rare BIA-ALCL | Bleeding, infection, scarring, oil cysts, calcification, fat necrosis, asymmetry, partial fat loss |
What are the common side effects?
- Swelling and bruising in the first few weeks
- Mild pain, usually managed with over-the-counter painkillers
- Numbness in the treated area, with sensation typically returning by about week 3
- Partial fat reabsorption as the graft settles, with about 70-75% retained overall
For a week-by-week guide, see our breast fat transfer recovery timeline.
What are the complication rates?
| Complication | What it is | Reported rate |
|---|---|---|
| Infection [1] | Redness, fever, increasing pain, pus drainage | 0.6% [2], usually resolved with oral antibiotics |
| Seroma / hematoma [1] | Fluid pockets under the skin | 0.1% [2] |
| Oil cysts [3] | Benign fluid-filled sacs | 6.5% [2] (reduced significantly with ultrafiltration adsorption technique) [3] |
| Calcification [2] | Fat cells with insufficient blood supply leave calcium deposits | 4.5% [2], removable via periareolar incision [4] |
| Fat necrosis [5] | Hard nodules resembling breast tumours | 1.2% [2], small areas often resolve within 6–12 months |
| Cellulitis [6] | Fever, hypotension, redness/swelling across both breasts | 10.9% [1], requires removal of unhealthy tissue to prevent septic shock [6] |
| Asymmetry [7] | Uneven breast proportion | 20% [1], reduced by choosing a surgeon experienced in breast anatomy |
Rates vary between studies and techniques.
Does breast fat grafting affect mammograms or breast cancer risk?
Calcifications, oil cysts and fat necrosis can show up on a mammogram and may resemble findings linked to tumours. Your radiologist may request extra imaging or a biopsy to confirm. This is a routine follow-up step, not a sign of a problem. Always tell your radiologist you have had fat grafting.
The American Society of Plastic Surgeons has stated that fat grafting to the breast is safe and does not increase breast cancer risk.
Who is a good candidate?
- Has enough donor fat to harvest
- Has healthy circulation
- Wants a modest, natural increase (1-1.5 cup sizes)
- Can maintain a stable weight, since weight loss can reduce graft volume
Who is not a good candidate?
- People with too little donor fat
- People with poor circulation that could impair fat survival
- Those who are smoking, pregnancy or breastfeeding,
- Those with active breast disease or cancer, bleeding disorders
- Women with unrealistic expectations of size
How to reduce your risk
- Choose an MOH-accredited liposuction doctor. Only doctors with a liposuction licence may perform fat grafting in Singapore.
- Ask about technique, including how fat is purified. Ultrafiltration adsorption is associated with fewer oil cysts.
- Check experience with breast anatomy, not just liposuction, to lower asymmetry risk.
- Follow pre-op guidance on donor site preparation.
- Maintain a stable weight and healthy lifestyle after the procedure.
Dr Ivan Puah has performed fat grafting for over 20 years with experience in Vaser liposuction, laser lipolysis, tumescent liposuction, syringe liposculpture and gynecomastia surgery.
FAQ
Is breast fat grafting safe?
Yes, when done by an experienced, accredited doctor. Major complications such as infection and hematoma are reported in under 1% of cases. It has no implant rupture risk, but it does carry other risks such as oil cysts, calcification and asymmetry.
How much does breast fat grafting cost in Singapore?
Prices start from about SGD 5,000++ onwards, compared with SGD 12,000 to SGD 20,000 for implants. Final cost depends on the clinic, the donor areas treated and the complexity of the case. The doctor's experience should matter more than price.
How long do breast fat grafting results last?
Fat that survives is permanent. About 70-75% of transferred volume is typically retained. Weight changes and ageing can still alter results.
How many cup sizes can I gain?
Typically 1 to 1.5 cup sizes, depending on available donor fat and your individual condition.
Will fat grafting affect my mammogram?
It can. Calcifications or oil cysts may appear on imaging and may need follow-up tests. Tell your radiologist about your fat grafting history.
Who is not a good candidate for breast fat grafting?
People without enough donor fat or with poor circulation. A consultation will confirm suitability.
Where can I get breast fat grafting in Singapore?
Only doctors with a liposuction licence from the Ministry of Health may perform it. Amaris B. Clinic's Medical Director, Dr Ivan Puah, has offered the procedure since 2008.
