Keloids occur most often on the earlobes, the chest, back, and upper arms. It is when scar tissue from an episode of "trauma" gets hyperexcited and grows beyond the bounds of the original wound. Usually a person knows when their keloid is active because it itches or is painful
Treatment is difficult and recurrence is common. Simply excising a keloid is not usually recommended because "trauma" itself is definitely a causative factor.
In this case, I use the Sensus SRT (Radiation Therapy) to treat the area in order to discourage the keloid from returning. This is a service we provide in our office now, and can also be used for certain types of skin cancer.