What happens if the fat rejects from fat grafting?

Fat does not reject and approximately 60% of fat transfer will incorporate into your body.  Excessive fat transfer cannot be performed and usually patients are limited to about 1 cup size.  However, the procedure can be done repeatedly for additional volume.Best Wishes,Gary Horndeski, M.D.  

Thanks for your question. Following fat transfer, the fat graft needs to gain a blood supply from the surrounding tissue. If this does not happen, then the fat will be broken down by the body to form an oil, and will usually dissipate. Sometime, oil cysts and areas of fat necrosis can form which present as firm areas within the breast. This risk can be reduced with meticulous surgical technique, and by keeping warm and avoiding smoking following your surgery.

About 50% of the fat obtains permanence.  If a second procedure is indicated, you can usually tell by 6 weeks.  Depending upon healing characteristics, it may be reasonable to perform the second surgery at 3 months. You have to consider not only which areas will have perhaps the best fat, but also you have to consider which donor sites will have the fewest problems afterward with the liposuction.  In general, the abdomen and thighs are preferred, but, if those sites are not available, other areas can be used.

Thanks for your question.  Fat will not be rejected by your body, because it is your own fat.  Thirty to forty percent of the newly injected fat will be REABSORBED by your body, but 60 percent typically remains.  Most patients have more than one fat transfer to the breasts to achieve their desired result.  Patients are very happy with the natural augmented look of fat transfer to the breasts.  Best of luck.