I have a big hole like in my butt cheek after a steroid injection that dissolved the fat. What can be done? (photos)

Similar to the responses, I think fat grafting is your best option. Although instead of just injecting fat into the defected area, there is a cannula that can be used to first separate and release the scar tissue from the underlying structures. It will allow the fat to survive better by making space instead of just injecting it under all pressure if the scarred area. I would be sure to choose a Board certified Plastic Surgeon who is familiar with fat grafting. I do multiple fat grafting procedures every week for my breast reconstruction patients. Good luck!

I'm sorry to hear about this issue. I do not think that it can be corrected completely, but a series of fat grafting may improve it significantly. He would likely need several rounds of fat grafting performed at different times. I would consider an in person visit with a board-certified plastic surgeon.

This indeed is an unfortunate consequence of either high dose corticosteroid injections or the injection been given into the fat layer instead of more appropriately into the muscle layer.  If the fat loss has finally stabilized then it is a good time to start reconstructing the defect. Probably your best option for this relatively small area would be fat grafting. Note that kt may take two or three sessions to get you back to about normal. Glad to be of help.