Fat around corners of mouth (perioral mounds or buccal fat)? (Photo)

Hello, I am a 27 year old female, and had these fat pads around my mouth since I was a kid. They were more prominent back then, but now that I am older and lost some weight these start to annoy me, and are noticeable at 3/4 face portrait. Inside they are like hard lumps to the touch. I would like to know what are the causes, and what m procedures can be done? Is further weight loss going to lose them? I am afraid as I get older they will start to sag down and worsen aging symptoms.. Thank you.