Got some weird skin thing on my knee, should I get it checked out?

Also wasn’t it cool back when we just hit a few keys in a row to communicate in game via text? Pretty sure that’s what I spent most of my time thinking about while getting driven home from middle school

But back to the skin issue. Think it’s related to this time I fell in that gravel parking lot in Neely, Alaska while running in flip flops and scraped my knee real bad. Not sure tho, cuz that was like 18 years ago