I had otoplasty surgery years ago, around one year after my surgery i began to develop a keloid scar behind my right ear, it grew to a fair size before i began steroid injections. I then noticed a small one begin behind the left ear, which again, years after initial operation. I have ZERO evidence of keloids anywhere else on my body, infact, i have many scars, all of which are completely normal. Ive had the keloids removed today, any idea why i developed them in first place? Allergy to sutures?