How to fix butt dents and discoloration? Will sculptra or radiesse work? (photos)

Dear Mini88888,
based on your photos, you look like a good candidate for a BBL. Liposuction of your abdomen, back and flanks should give you more curves and hourglass shape and fat transfer to buttocks should give you more projection. I would suggest you to consult a board-certified plastic surgeon because 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

Yes multiple sessions of either or both products can give effective results. I sometimes add fat grafting to the mixture. Expect fees in the $12,000+++ ranges.

If you do not have any available fat for fat transfer, Sculptra would make an ideal filler in your case. It is not however a one time procedure as volume needs to be built over time. Make sure you find someone who is experienced in such procedures. I hope this helps and good luck from New York City Plastic Surgery