A keloid scar may form within months to years of the inciting injury. Signs and symptoms might include: 
Thick, irregular scarring, typically on the earlobes, shoulders, cheeks or middle chest
Shiny, hairless, lumpy, raised skin
Varied size, depending on the size of the original injury and when the keloid stops growing
Varied texture, from soft to firm and rubbery
Reddish, brown or purplish, depending on your skin color
Itchiness
Discomfort
