Significant facial swelling can be seen for 1-2 weeks after your procedure. A complete resolution of all swelling should be apparent at 2-3 months. However true facial definition (such as in the thinner areas of the face) can take several months to completely reappear based on how long ago you had the grafting done, and how much fat was actually transplanted and survived.
It’s best to consult your surgeon with any concerns as they will know exactly how much fat they grafted and if and when you should be worried. Also, be sure the surgeon you choose for procedures such as fat grafting is Board Certified, experienced and performs fat grafting procedures regularly.