Will fat lost after breast transfer due to weight loss come back when I gain weight again?

Hi - yes, you should get some return of volume if you were to gain weight. However, it is also important to consider that your breast volume and consistency (glandular vs fatty component) will also change as you age, if you have children, and if you breastfeed. In addition, skin quality changes over time and may stretch with weight fluctuation leading to changes that may be improved by surgery.

Dear DCP106,
you can't be 100% sure, but there is a high chance that you will regain at east some of the lost breast volume if you gain weight again.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

After a fat transfer to the breasts, the transferred fat behaves like any other fat in your body. This means it can increase or decrease in size in response to weight changes. Given your significant weight loss from 57 kg to 46 kg, it's understandable that your breasts have returned to a size similar to what they were before the fat transfer. This is because the fat cells that survived the transfer process have shrunk due to the overall reduction in body fat.
Weight Stability and Fat Cell Behavior:Fat cells transplanted during the procedure need a blood supply to survive, and once integrated, they act like native fat cells in their new location. If you gain weight in the future, these cells can expand, and if you lose weight, they will shrink. This dynamic change is why your breasts can increase or decrease in size after fat transfer, in line with fluctuations in your body weight.
Future Changes and Weight Stability:- Whether or not the fat will return to your breasts if you regain weight depends on several factors:- The proportion of fat cells that survived the initial transfer: Not all fat cells survive the transfer, but those that do will continue to behave like other fat cells in the body.- Where your body tends to store fat: Some people naturally store more fat in certain areas. If your body favors storing fat in your breasts, you may see an increase in size there if you regain weight.- Overall body composition and genetics: Your genetic makeup influences how and where you gain and lose weight.
Considering Additional Procedures:If the reduction in breast size due to weight loss is bothersome and you do not expect significant weight fluctuations in the future, you might consider additional fat transfer sessions to increase volume. However, this should be carefully planned with your surgeon to ensure the best aesthetic and sustainable results.

In a breast transfer procedure (commonly known as fat transfer to the breasts or autologous fat transfer), fat is harvested from one area of your body, typically through liposuction, and then transferred to the breasts to increase their size or improve their shape.When you gain weight after a fat transfer to the breasts, the transferred fat cells can indeed expand along with the fat cells in other areas of your body. This means that your breasts may increase in size proportionally to your overall weight gain. However, the distribution of the fat gain can vary from person to person.Conversely, if you lose weight after a fat transfer to the breasts, you may notice a decrease in breast size along with reductions in other areas of your body. This can occur as the fat cells in the breasts shrink in size along with the rest of your body.It's important to note that the results of a fat transfer to the breasts can be affected by changes in weight. Significant fluctuations in weight can potentially impact the appearance of the breasts over time. If you have concerns about maintaining the results of your fat transfer procedure, it's advisable to maintain a stable weight through healthy lifestyle habits such as regular exercise and a balanced diet. Additionally, discussing your expectations and concerns with your plastic surgeon can help ensure that you have a clear understanding of what to expect both during and after the procedure.

The viable fat cells that survived the transfer will still work and do their job to enlarger with fat gain.

Weight fluctuations can have an impact on body contour in that it can contribute to skin laxity.
Weight fluctuations by itself, will not change fat distribution.
Best,
Mats Hagstrom, MD