Why do humans feel itchy?

Question

And why do you have to scratch it when it itches?

Answer 1

it sometimes can be the cause of dead skin cells after sweating. simultaneously new skin cells are formed.  this is a constant cycle.

Answer 2

ya know this is good question i think because we dont take enough bath that is what my momma told me and i itch really bad so i took bath and few weeks later i stop itchin but had to take bath after bath it was painful because billy hate water billy really hate water

another good quesiton is why human get dizzy we shouldnt get dizzy because we're always spinning that is what my science teacher used to say before i drop out of school to become wheelchair driver

Answer 3

too many STDs going around

Answer 4

I don't itch I get itched!!

Oh burn....