“ITS NOT A TUMOR” I hope

Patient: Ive had this thing on my head for as long as I can remember though I do have photos without it. It has not grown any larger in some time as far as I can tell. Girlfriends, family and hairdressers all tell me I should get it checked but I never really worried about it and for the next day as I always had hair. My question is should I be worried that it may be someknething more than just cosmetic? Ive attached a photo if you knowwhat it is that would be great.

Doctor: