What are Keloids?
Keloids are pathological scars raised more than four millimeters from the skin. They can extend further beyond the borders of the original wound. They are less common than hypertrophic scars, but dark skin persons are more given to develop them. Anything could cause them: burn injuries, piercings, cuts, tattoos, after surgery or even acne. They start to show up to 3 months from the time that the injury was suffered and may keep growing for years.