My two best girlfriends know that I have UC, I try not to talk about it too much with them though. If I'm not doing well, I can talk to them but I try to keep the details to myself. I know that before UC, I would've been very turned off by hearing about people's pooping issues..lol.
My family knows (of course). My mom hears most of the details and my DH hears some of them. My inlaws know that I have UC and so do other family members. They don't know all the details and I prefer not to talk about it with them. I have a step-BIL (I hardly know him) who once asked me if I needed to go to the bathroom before he got in the shower (we were at my family's vacation home several years ago). It was so embarrassing. I appreciate his concern for me but I really don't like an almost stranger asking me if I need to poop!
I have a new group of friends from my daughter's preschool that I've been friends with for 3 years and they have no idea that I'm sick. None of my neighbor friends know either.