Breast fat transfer on thin person?

Dear Jadore01,
generally speaking, you want to reach your goal weight before you consider 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, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

There is no such thing as research on the internet. For the lay public, it's a jungle of mostly misinformation, much of which is designed to misinform. You can only make a good risk/benefit analysis when given correct information. A perfect example is your conclusion that the risks of implants outweigh the benefits. Breast cancer patients get implants all the time, and their risk of recurrent breast cancer is the same as for women that didn't get implants. The other big source of misinformation is systemic symptoms from breast implants, formally BII. It simply isn't a real illness. There is no agent that causes it, and if there was, we would be seeing a similar phenomenon in patients with other types of implants made of the identical material: testicular implants, finger and wrist joint implants, facial implants, chronic urinary catheters, and brain shunts. You may be a good candidate for fat grafting, but you'll need an in person examination to determine that, not just height and weight. Regardless, don't count out breast implants.

Although fat transfer is possibly a worthwhile option it sounds like you don’t have much excess fess fat to harvest. You might consider saline if silicone scares you. Saline implants work just fine and are more worry free

If you have donor fat, then a transfer may be done. If you do not have donor fat, then the transfer is not an option. Do not try to gain weight just to have the transfer.

Most patients who have lumpectomy surgery typically also have radiation treatment. After radiation treatment a lot of procedures become contraindicated and will have high complication rates and failure rates. This includes breast implants and fat transfer. I suggest having a few in person consultations with plastic surgeons who have extensive experience doing breast cancer reconstruction.
Your post didn’t really include a question. You also didn’t include any pictures.
I suggest scheduling in person consultations with plastic surgeons in your community to get a better assessment and better understanding of treatment options.
Breast cancer patients can get symmetry surgery covered by medical insurance.
Look for plastic surgeons who are involved with breast reconstruction in your community.
Best,
Mats Hagstrom, MD