Hi OklahomaCity2013,
The simplest way to think of the difference between the buccal fat pad and the jowls is that the buccal fat pad is in the area that we consider the “cheek” while the jowls are along the jawline.
Prominent buccal fat can make someone have the “chipmunk” cheek appearance. On the other hand, the loss of buccal fat can make someone look very gaunt and give a “hollowed out” appearance.
Droopy jowls are what cause an irregularity along the jawline. A straight jawline is an indicator of youth and so when the skin and/or fat along the jowls start sagging, it creates this irregular contour and makes someone appear older.
Regardless of whether your concern is with your buccal fat or your jowls, there are different techniques to address both of these issues, respectively. Hope this helps!
Dr. Sunder