Do seborrheic keratosis grow?

I have one under my arm.
I got it checked by a professional in Dec.
He said it looked fine and it’s actually a type of wart not a mole?
Anyway since then I’m SURE it’s grown. Do these types of growths grow? I got it checked out by 4 Dr’s as I was sure it wasn’t right, but, given it wasn’t a mole that made sense as it’s all scaly etc. My daughter always pulls bits off but they grow back. Sorry TMI.
Anyway does anyone have these and do they sometimes just grow or should I go back to the Dr about it?
It doesn’t look any different but I’m sure it’s gone from an oval to a circle!
Thanks Flutherists