Question What is on my pc fan?

[trust retro]

- ive honestly not noticed it till now but i have no idea how long its been there or if its always been there? should i remove it?

 

[hedwar2011]

Did anything leak into the PC or the fans? Take some IPA (isopropyl alcohol) and Q-tips or a tooth brush and clean it off.

 

[RandomRyzenLover]

- ive honestly not noticed it till now but i have no idea how long its been there or if its always been there? should i remove it?

I can't tell if that's a piece of chewing gum or a dead bug. Like the above person mentioned, just clean it off and you should be fine. lol

 

[SkyNetRising]

- ive honestly not noticed it till now but i have no idea how long its been there or if its always been there? should i remove it?

Looks like piece of a gum.
Somebody was annoyed by noise, your pc is making, and tried to make it quieter. LOL

Obviously - remove it.