Edit: I had someone comment one time when I did, and it was kind of weird and embarrassing? But it seemed like a fairly normal thing to do, so I thought I’d ask.
Yes. Excess of green or yellow mucus could be indicative of strep throat or a cold. If there’s bleeding, that’s a sign of worse.
Blood is most likely just a minor nosebleed due to nosepicking or simply vulnerable tissue. No need for panic. If it happens more often than not, then simply check with a doctor. And still no need for panic.
It’s like looking after you have a bowel movement. It’s normal.
But do you really have to show your friends every time?
Yes
Yes, I need to make sure that what’s in the tissue matches what I felt fly out of my nose so I know it’s not stuck in my beard.
Or 'stache.
But also, it’s kinda satisfying to see the huge chunk of hardened snot that’s been bugging the ever living hell out of you most of the day.
