My friend got her period for 50 days straight!?!

My friend got her period for 50 days straight!?

ok me and my friends were talking about periods and stuff and my friend said that she got her period for 50 days straight! i honestly couldn't believe it. well...just wondering why something weird like that would happen to someone (what would be the causes, etc) oh and here is some info that might help you guys out.

1. shes a virgin

2. she wasnt on any birth control/hormonal pills (but after that 50 day period she took some to fix it)

3. she was 14 at the time

thanks!

Hormonal imbalances and PCOS can cause that because you don't ovulate when you have a period for that long (and longer).

I know because it happened to me in 1992. I bled for a year because I stopped ovulating.
I have PCOS.