True story mate, I had a huge lump ( 10 years ago at least) come up above my balls so went straight to the docs. He said we have a trainee doctor ( female ) in today do you mind if she stands in. I said no it doesn’t bother me, anyways drops my pants and gets on the bed, nothing it had disappeared. Well I had been checking them regularly ever since it was on the news. I said well when I lifted them like this and turned them like this it came up. They both started laughing and he says if you do that to your nuts it’s hardly surprising. 10 years ago now and never appeared again, bizarre!