The shudder is not consider a sign of bad health but so far no studies had been performed to confirm the exactly cause.

If it comes out in a series of bursts, something might be seriously wrong with their prostates.

I didn't think this had anything to do with urethral health. Sometimes it just feels so good if you've been holding for a length of time. I moan occasionally, but it has nothing to do with pain as much as relief.

I also wash my hands every time and talk shit to people who don't, cause I'm huge and can get away with stuff like that(read don't put yourself in danger, I'm doing it enough for both of us)