Saggy BBL - What can I do to improve this condition? I really don’r want to go under the knife for it again.

Hi and welcome to our forum!The fat grafted into the buttocks usually has a 60-80% survival rate. Thus as healing proceeds, the volume of the buttocks will decrease. Swelling decreases during this time as well. This usually occurs over the first 6 months. Later fat loss may be attributed to weight fluctuation.Without before and after pictures it is impossible to be more precise, but it sounds as though you may be a candidate for a secondary procedure. Sculptra is short lived. Seek advice from your plastic surgeon.Best wishes...

You are still in the early stages of recovery at 3 months out.  However, it is normal for some of the fat that was injected to resorb or die off. Please wait until around 6 months to consider a revision and go see a board certified plastic surgeon.Providing photos would be helpful and would allow me to give you a more thorough answer. Best of luck!