Is it possible to have buccal fat removal on one side of the face only?

Hello, hope you are well. The simple answer is yes, unilateral buccal fat removal can be performed. But before doing so, I would recommend a detailed examination and/or CT scan to assess the cause for asymmetry as accurately as possible. It is hard to tell from this photo alone if buccal fat asymmetry is really present. Differences in the facial skeleton, masseter muscle, and even parotid (salivary) gland can also account for asymmetric facial width. If you had jaw reduction surgery, perhaps there is still some residual asymmetry, overcorrection, or persistent edema (the gonial angle appears to protrude more on the left, which would not be corrected by buccal fat removal). Or, there could be a difference in masseter projection which could be treated with botox injections. Good luck!
Best,Dr. Tower