I identified a three/four inch chunk of hair missing?!!?

Issue by Martin F: I found a three/4 inch chunk of hair lacking?!!?
i’m seventeen soo i never feel its hair loss and its in the again of my head it feals totally bald.. none of my friends or anyone shaved mee. soo wht could it be… will it expand again?!?! if u require me too solution a lot more questions.. ask in issue and i will react in extended issue.

yeh each grandparents have entire head hair and father does as well.

Greatest solution:

Solution by adge
possibly the legs of the hair didnt like you, so they ran away .

Include your own answer in the comments!