When to See the Difference After Fat Transfer to Butt?

Thank you for your question. Remember this is a process, the final results can show after 6 months. Give it time and follow all your plastic surgeon recommendations. I would suggest to be treated by board certified plastic surgeon with experience in this procedure, to get the best desired results.

Respectfully,
Dr. Emmanuel Mallol Cotes.-

About 60% of fat from the transfer is retained and the results are permanent. The size will change with your weight just as the rest of your body does. In other words, the fat acts like it was naturally there. You can get a good idea of the final result after 6 months.

The effect of buttock augmentation is seen immediately but it will swell for a few weeks then settledown to its new size.  The buttock augmentation by fat works very well.

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.

It would be unlikely for the buttocks to get any bigger. In fact as swelling decreases, so does the volume.
Depending on how much fat was placed and how much will survive (many factors) it may be several months before the final results can be seen.
In my practice, sometimes it takes more than one session of fat grafting to see significant enlargement of the buttocks