I had a neighbor lady call me a cpl months ago and ask about the "slime" coming out of one of her cow's backside and why is the bull following her. She was really worried and was asking if it was an emergency and if she needed to call the vet out. This lady is a retired medical doctor too

I had to gather my wordage (lol) but essential said, when you see something different in the rear area, such as discharge, or swelling before calving, etc., use some context clues to help, perhaps, ya know, determine a commonality w/ those symptoms in cattle and those symptoms in other female mammals (women)
She just started laughing-- "Ohhh that makes sense"