I’m outdoorsy and weight fluctuates a lot with the seasons. What is the real risk of weight loss after breast fat Transfer?

The size of a woman’s breasts can be affected by hereditary factors, extreme weight loss, the aging process, and pregnancy. About 50% of the fat obtains permanence. In general, the abdomen and thighs are preferred donor sites. You will need at least 6 weeks before you will realize your result. Some of the retention rate will depend upon the amount of fat transferred, as smaller volumes will likely have a higher survival.

Dear Sensible453705,
generally speaking, you want to reach your goal weight before you consider a surgery, otherwise your results will be suboptimal if you continue to lose weight after the surgery. If you are considering surgery, I would suggest you consult a board-certified plastic surgeon. Only after a thorough examination, you will get more information and recommendations.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

You are correct. Weight loss with shrink fat cells, all fat cell, those transferred and those local. If you are very athletic, fat transfer may not be in your best interest.