Fat transfer is a surgical procedure that uses your own body tissue to add volume in a target area. Rather than introducing a foreign material, fat is removed from one part of the body, processed, and then injected where volume is the goal. It is used across a range of cosmetic applications, from facial rejuvenation to breast augmentation.
The procedure involves two surgical sites: a donor area where fat is harvested, and a recipient area where it is placed. Both carry their own considerations, and the overall suitability of fat transfer as a procedure depends on individual anatomy, available donor fat, and the specific goals of each person.
Quick Overview
- Fat transfer is a surgical procedure that moves a person’s own fat from one area of the body to another to add volume or improve contour
- It may suit people who have sufficient donor fat and want volume enhancement without implants, though not every area or goal is appropriate for this approach
- The procedure involves liposuction at the donor site, fat processing, and injection at the recipient site, typically under local or general anaesthesia
- How much transferred fat survives varies between individuals and is influenced by technique, the receiving site, and individual biology
- A thorough clinical assessment is needed to determine whether fat transfer is appropriate for your situation and goals
Keep reading to understand how fat transfer works, what the procedure involves, what affects how long results last, and what risks should be considered.
What Is Fat Transfer and How Does It Work?
Fat transfer, also called fat grafting or autologous fat transfer, is a surgical procedure that moves fat from one part of the body to another. The fat is taken from the patient, so there is no foreign material involved. Common donor sites include the abdomen, thighs, and flanks.
The procedure has three main stages: harvesting the fat using liposuction techniques, processing the collected fat to remove unwanted fluids and oils, and then injecting the purified fat into the target area in small, carefully placed amounts. Each stage requires precision, as how the fat is handled affects how well it survives once injected.
Fat transfer is used in a range of contexts. Breast fat transfer is one of the more common applications, where it is used to add modest volume or improve the shape and symmetry of the breasts. It is also used in facial rejuvenation to restore volume that has reduced with age, and in body contouring to address contour irregularities or areas that have lost volume.
What Does the Procedure Involve?
The procedure is performed using liposuction techniques to harvest fat from the donor site through small incisions. A cannula is inserted, and the fat is gently drawn out under low pressure to minimise damage to the fat cells. The goal at this stage is to collect healthy, intact fat cells that are more likely to survive once transferred.
Once collected, the fat is processed. This typically involves centrifugation or filtering to separate the viable fat cells from blood, fluids, and oils. The purified fat is then loaded into small syringes for injection.
At the recipient site, the fat is injected in small amounts across multiple passes. This technique distributes the fat evenly and maximises contact with surrounding blood vessels, which the transferred fat cells need to establish a new blood supply. Larger deposits of fat in a single location are less likely to survive, which is why controlled, layered placement is important.
The procedure is usually performed under local or general anaesthesia depending on the volume of fat being transferred and the areas involved.
How Much Transferred Fat Survives?
Not all transferred fat survives. A proportion is reabsorbed by the body in the weeks and months following the procedure. This is a normal biological process, not a complication.
The degree of reabsorption varies between individuals and is difficult to predict precisely. Volumetric analysis of fat graft survival in breast reconstruction found that larger volumes of injected fat retained approximately 52% of their initial volume at 140 days post-procedure, with smaller volumes showing similar or greater reabsorption over the same timeframe.
Because some fat is expected to be reabsorbed, the treated area is often slightly overfilled at the time of surgery to compensate. Some people may need a second procedure to achieve their preferred volume, depending on how much fat survives.
What Affects Whether Fat Transfer Is Suitable?
Fat transfer is not suitable for every patient or every goal, and several factors influence whether it is an appropriate option.
Sufficient donor fat is essential. A person needs enough fat available at a suitable donor site to harvest an adequate volume. Those with low overall body fat may not have enough for a meaningful transfer, or may not be appropriate candidates for the liposuction component of the procedure.
The recipient site must be appropriate for fat grafting. Some areas accept fat grafts more reliably than others, depending on the blood supply of the surrounding tissue and the volume being placed.
Stable body weight is important. Significant weight loss after a fat transfer can reduce the volume of the transferred fat, as the transferred fat cells respond to weight changes in the same way as fat cells elsewhere in the body.
Overall health and surgical suitability are assessed individually. Smoking affects the blood supply to healing tissue and can reduce fat survival rates. General health factors that affect surgical risk are also considered as part of the assessment process.
What Are the Risks of Fat Transfer?
Fat transfer is a surgical procedure and carries risks at both the donor and recipient sites. A thorough assessment is important before proceeding.
Risks at the donor site include those associated with liposuction, such as bruising, swelling, contour irregularities, fluid collections, and changes in skin sensation. The small incisions used for harvesting typically heal well but carry a risk of scarring.
Risks at the recipient site include fat necrosis, where some transferred fat cells die and may form firm lumps or oil cysts. Infection is possible at either site. Changes in skin sensation can occur. Asymmetry in the treated area is a possibility, particularly where the final volume of surviving fat is uneven.
Less common but more serious risks include fat embolism, where fat enters a blood vessel, and deep vein thrombosis. As with any procedure performed under general anaesthesia, anaesthetic-related risks also apply.
Like all surgical procedures, individual outcomes vary. A thorough discussion of risks and realistic expectations forms an essential part of the consultation process.
What Does Recovery Involve?
Recovery from fat transfer involves both the donor site and the recipient site. Bruising and swelling at both areas are expected and typically resolve within two to four weeks.
A compression garment is usually worn over the donor area for several weeks following the procedure to support the tissue and minimise swelling. Strenuous activity and heavy lifting are generally avoided for a number of weeks while both sites heal.
The volume in the recipient area will appear larger immediately after surgery due to swelling. As swelling settles and fat reabsorption occurs, the treated area changes in appearance. The more stable, longer-term result becomes clearer from around three to six months post-procedure.
Any concerns during recovery, including unexpected increases in swelling, pain, or signs of infection, should be discussed with the treating team promptly.
A Considered Approach to Fat Transfer at Refine Clinic
Fat transfer is a procedure that requires careful assessment of both donor and recipient areas, realistic expectations about fat survival, and a clear understanding of the risks involved at each site.
For those exploring whether fat transfer may be appropriate for their situation, Refine Clinic Bondi Junction takes an assessment-led approach, evaluating individual anatomy and goals before any surgical pathway is discussed. Before pursuing any cosmetic surgical procedure, it is worth considering key questions about suitability and risk as part of an informed decision-making process.
To arrange a consultation, we welcome you to contact us online or call us on (02) 8599 7161.
Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.
Frequently Asked Questions
How is fat transfer different from breast implants?
Fat transfer uses the patient’s own fat, harvested by liposuction, to add volume to the breasts. Breast implants use silicone or saline devices placed surgically to achieve volume and shape changes. Fat transfer typically produces a more modest volume increase and does not involve any foreign material. Implants allow for a more significant or predictable change in size. Suitability for either approach depends on individual anatomy, existing breast tissue, and the specific goals of the patient, and is assessed at consultation.
How long do fat transfer results last?
The fat that survives the transfer and establishes a blood supply in the recipient site is considered long-term. The degree of reabsorption varies between individuals, with the most significant changes in volume occurring in the first three to six months. After this point, the remaining fat behaves like fat cells elsewhere in the body, meaning it can be affected by weight changes. There is no fixed timeframe that applies to all patients, and realistic expectations are an important part of the pre-procedure discussion.
References
Healthdirect Australia. (n.d.). ‘Liposuction’. Healthdirect Australia. Canberra, ACT: Australian Government. https://www.healthdirect.gov.au/liposuction
Choi, M., Small, K., Levovitz, C., Lee, C., Fadl, A. and Karp, N.S. (2013). ‘The Volumetric Analysis of Fat Graft Survival in Breast Reconstruction’. cosmetic and Reconstructive Surgery, 131(1), January, pp. 185–191. New York, NY: Wolters Kluwer. https://pubmed.ncbi.nlm.nih.gov/23076412/
Department of Health and Human Services (Victoria). (n.d.). ‘Liposuction’. Better Health Channel. Melbourne, VIC: Department of Health and Human Services. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/liposuction
Healthdirect Australia. (n.d.). ‘Guide to cosmetic surgery’. Healthdirect Australia. Canberra, ACT: Australian Government. https://www.healthdirect.gov.au/guide-to-cosmetic-surgery
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