When to See the Difference After Fat Transfer to Butt?

Its unlikely that will will gain any volume in your buttock beyond what you have now- you may lose some volume after the post-op swelling resolves and some of the grafted fat is metabolized. Its fairly common to require additional fat grafting procedures to enhance large volume results in the buttock and breasts.

There are many things that contribute to the final result of the buttock enlargement.

Volume of fat
Viability of fat
Technique of harvest
Technique of preparing fat
Technique of injecting fat
Location of fat
Adjuntive procedures such as liposuction of outer thighs and lumbo-sacral dimple

Depending on the interplay of these various factors and the swelling that ensues, it may take several months prior to assessing your final result. I typically tell my patients to wait a minimum of 3 months before judging the outcome.