It can take up to six months to see the final results of fat-transfer buttock augmentation, because the fat has to be assimilated into the local environment. Post buttock fat transfer, you should not sit or sleep on your buttocks for at least 2-3 weeks for the best results. Sitting or sleeping on the buttocks will decrease the amount of fat in your buttocks. Dr Uppal is the best cosmetic surgeon in the Sacramento, Roseville, Rocklin area for Buttock Augmentation. His detailed knowledge of female buttock anatomy and anthropometric measurements of an aesthetically pleasing buttock shape has helped him achieve the best buttock augmentation results in the greater sacramento area