Cheek thinning (bishectomy) is the process of removing some of the deep fat called bishet fatty tissue in the cheek area to make the cheekbones more pronounced and the facial lines sharper. People who prefer a bisectomy often have a complete, flat facial line, which we call a square or "U." Contrary to what is accepted in bisectomy surgery, it aims to remove deep fat tissue, not the subcutaneous fat that is superficial. Bisectomy is not a weakening or reduction of the face. This is a styling process performed only by reducing the volume from the cheeks. Bishectomy is a permanent surgery.