Copyright 2008 HPI Partnerships
This Answer Opened A New Window...Simply Close It To Return.
Masturbation causes your testicles to shrink.

Absolutely false! It is true that if you're highly aroused, your testicles become engorged with blood and may appear slightly larger and heavier, and that masturbating will make them revert to normal. But they will absolutely not be any smaller than after the last time you masturbated.
MYTH