Procedures - FAT INJECTION

Body fat makes excellent soft tissue filler material and is sometimes a suitable alternative to synthetic filler products. Fat injection (also called autologous fat transplantation) transfers fat from one part of the body to another and can be used to recontour the face; diminish frown lines, crow’s feet and nasolabial folds (smile lines); and provide definition to areas like the cheeks and chin. It can also be used to fill out depressed scarred areas on any part of the body. It is useful as a soft tissue filler for lip augmentation. Fat injection is not permanent, and may require an effective maintenance program.While some patients report results lasting 1 year or more, the majority of patients find that at least half of the injected fullness disappears within 3-6 months. Therefore, repeated injections may be necessary. Although there is a natural tendency for the body to absorb injected fat, in some instances, the injected fat obtains a blood supply and acts as a viable graft. This may provide longer lasting results.

The Procedure:
The donor site (for example, abdomen, buttocks or thighs) and the treatment site are injected with local anaesthetic. Intravenous (IV) fluids are also injected into the donor site to facilitate fat collection. Fat cells are extracted through a small needle attached to a syringe. The fat is then processed to remove excess fluids and reinjected with another needle in multiple thin strands in the desired area. “Overfilling” is a necessary corrective measure due to the body’s natural fat absorption process which takes place in the weeks after treatment. Fat can also be harvested during a lipoplasty (liposuction) procedure in one area of the body, and then reinjected in another. For longest-lasting effect, patients generally receive 3 to 4 treatments over a six-month period.


  • Natural, non-allergenic. Outpatient procedure that generally takes under an hour.
  • Injections may last from several months to permanently.
  • Little or no downtime.
  • Minimal discomfort, easily controlled with medication.
  • Because fat is from the patient’s own body, no pre-testing is required and the fat cannot be rejected.
  • Good alternative if the patient is allergic to bovine collagen.
  • Cost effective if combined with another procedure like lipoplasty (liposuction).

Risks and Considerations:
  • Every surgical procedure carries some risk. Potential complications may include haematoma (an accumulation of blood under the skin that may require removal), infection, and reactions to anaesthesia.
  • Longevity of results can vary significantly from patient to patient.
  • Some swelling, bruising will occur, usually within 48 hours.
  • Patients should avoid the sun until swelling/bruising subsides.
  • Not every area is appropriate for fat injection. Injecting fat into the breast, for example, makes cancer detection via mammography more difficult and is strongly discouraged.
  • Lasts longest when reinjected in relatively stationary areas (such as the cheeks).

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Choosing to have plastic surgery requires thorough research and educated decision-making. This website is designed to help guide you get to know a little bit more about my practice and understanding of the procedures and treatments available to you. I look forward to meeting you which will allow you to make a better informed decision around treatments or surgery best suited to you.

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