Some of my co workers know, and some of my family and friends know I've had it done. I don't mind people knowing, but sometimes it can be annoying explaining what the lap band is and what it does to every person. I did weight watchers before (lost 75lbs at one point), so I'll just tell the people I don't want to know that I'm back on that...I think telling people can be good, if you need the support.