Without photos or an in-person examination, it is difficult to discuss the best modality for your specific case. However, speaking in general terms, I will describe what can be done depending on your configuration and age. If the jawline/neck is obscured with excess fat, and you are relatively young (meaning that your skin possesses good elasticity), then you might benefit from liposuction of the neck to help sculp the jawline and to eliminate the “neck goes straight to my chin” look. If you are older, and you have excess skin as well as fat (and less elasticity in your skin), then a full neck lift might be required since the skin would need to be addressed in addition to the fat. If liposuction itself, or liposuction + neck lift would be required, I perform both procedures by hiding the incisions so you will not have any obvious scars. As a board-certified plastic surgeon, I do both procedures using the finest cannulas to remove the fat, and you would (in either circumstance) need to wear a head-dressing bandage for three days, so the recovery is pretty quick. Some patients also benefit from a chin implant to help improve the jawline if they have recessive chins. I recommend consulting with a board-certified plastic surgeon in person so that you can discuss your goals and concerns to see which procedure(s) would be best for you.