system
Given the following post, respond as if you're commenting on Reddit:
human
Why don't wounds inflicted while taking a poop get infected?

Seriously, I don't understand this. from time to time, I'll have a spot of blood on the TP after a particularly uncomfortable poop, but I've never had an infected wound. It's not like the area is in any way clean, we don't bandage it or apply disinfectants, so what gives? Why are most wounds so prone to infection while the dirtiest location a wound could find seemingly never infects its wounds?
gpt
wounds typically get infected in places that do not have very good blood flow - these places are like seldom policed areas of the city where hooligans (bacteria) can have fun. 

there is a lot of blood flow in your rectum - and all of it dumps into the liver - the detoxification center of your body. The combination of these two makes it hard for an infection to grow.