Genitalia issue Is this bad and what is it called?

Question

since march of 2007, I had this thing where sometimes if i run too much or m********e, one of my nuts dissapears usaully right but sometimes left, it always comes back if a lift my p***s up to my stomach, they seem to drop down from some where.

Answer 1

Peek a boo!

Answer 2

it doesn't disappear...it retracts. When the body is ready to o****m the testicles pull back

Answer 3

That's retraction. I have the same thing, but usually during o****m (or about to) is when it occurs. Nothing to worry about; it happens. There's no known side effects, other than occasionally becoming a bit sore from "riding up" as it were.

Anything else, just ask.

Answer 4

Normal.  Your t******e just retracted, no big deal, most guys will have one or both pull up sometimes and as long as you can nudge it back out, you are fine.