Keloids, Do They Disappear over Time?

Keloids can occur with trauma to the skin such as a surgical incision.  Some individuals are more prone to developing keloids than others and there's really not a way to predict who will keloid.  If you have a past history of keloids, you should communicate this to your surgeon.  Oftentimes, if a keloid is observed early on, your surgeon can inject a steroid into the keloid that will help to improve the appearance of the area.  

Keloids and hypertrophic scars are not very common after facial surgery, even if you have experienced them in other body areas

Keloids have a greater tendency to develop in people of color and area of the central body(chest, shoulders,back,etc.)  They can develop on the ears after piercings. I would have a plastic surgeon examine your scars because some patients confuse keloids with a widened scar.

Dr. ES

They do flatten out and become less red. Facelift scars rarely keloid. When it is time for your facelift the surgeon will be able to tell you with a greater degree of certainty. In 35 years of facelifting I have never had a keloid on a facelift patient.

Without pictures and without examining you, it is hard to give specific advice.  Additionally, patients sometimes think that they have keloids when they actually have hypertrophic scars or some other healing issue.  If you do have true keloids, there is a chance that you will get them again.  There are not great treatments for keloids there are some methods such as steroids and radiation which may help.  Good luck.