Bichectomy, also known as cheek thinning surgery, is a cosmetic procedure designed to refine facial contours by removing some part of a specific type of fat pad called the buccal fat pad. This surgery aims to enhance the definition of your cheekbones and create a more sculpted, chiseled jawline. Buccal fat removal is also performed in cases where fat herniation occurs due to the weakening of the barrier in front of the buccal fat pad with aging.