When the scrotum is empty: undescended testes don't only affect kids
Why do the testicles rise during sex, or during and before ejaculation? - Quora
I have noticed that my testicles, once I finished the process of peeing, swings and change shape. Is it normal? - Quora
How to Do a Testicular Self-Exam (Slideshow) (for Teens) - Nemours KidsHealth
Is it possible to move your left ball to the right and your right ball to the left? - Quora
Testicular torsion | healthdirect
Sometimes my testicle spins round and I have to twist it back around again. It doesn't hurt. Is it normal for them to twist round a little bit? If not, is this
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