How can I fill a large indentation on my butt caused from vaccines as a child? (Photo)

Hello @perlabuendia thank you for your question. You could try to have a sub-incision procedure in the area in combination with Radiesse may help improve the skin's appearance, reduce adhesion, and restore volume to the skin. For more information and recommendations, it is best to consult with one or several board certified plastic surgeons. Best wishes! Alan Gonzalez MD, FACS.

Dear perlabuendia,
it is hard to tell for sure without an examination. Based on your photo, it looks like you would benefit from fat transfer. 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

For the fat transfer to work, the dentation must be released from the attachments. It may be done in the first operation and helped a bit, but unfortunately these conditiones usually can not be solved in one session. So I see that another attachment release and fat transfer will help for improvement.

I recommend subcision to release sub derma; scarring followed with a combination of fat grafting/Sculptra/HA fillers into area. Fee $5,000. Best to virtual consult with...

Scarred tissue contractions cannot be corrected with volume enhancement. your outcome was highly predictable. The surrounding areas will expand while the indentation remains stubbornly pulled in.
Discard tissue that’s pulling or tethering on the skin needs to be released in conjunction with carefully added volume. this can sometimes be done with the procedure called Subsicion. this can be done with or without augmentation using grafted fat or fillers.
Improving the contour after trauma causing scar tissue contraction can be difficult and sometimes only limited improvements can be had.
Simply adding volume is a bit of a simplistic approach that shows lack of understanding of the ideology of the problem.
Best,
Mats Hagstrom MD