I have a 5 months old long-haired cat . I clean his litter box every morning (when i wake up) and night (before i sleep) , and before i clean the litter i wipe his butt to prevent stains on the carpet. This morning when i wiped his butt , there was blood on it . not a lot of blood.(This happened about an hour ago) and he's not bleeding now. His poop looks and smells normal , but he pooped more than usual. I was wondering if this could be the reason why his butt is bleeding? oh and about a week ago he swallowed a few strings , they weren't long but it was about 6 strings stuck to each other .. maybe this is causing the blood? He's playing, running, eating, drinking, peeing normally. pooping normally before this morning (it was more than usual). I have an appointment with the vet tomorrow because he has his vaccination so I'll ask about the bleeding tomorrow. The vet is closed today .