Do testicles give movements like a heartbeat? If so is that a serious problem? Also, I am getting a little pain in my testicles.
You have blood flowing through arteries and veins in your scrotum, and from those it is possible to feel your heartbeat, just as you can feel the heartbeat in your wrists.
Pain in the testicles could indicate a problem, such as a varicocele (a bad valve in a vein in your scrotum). It would be best to have this checked by a doctor.
What are the effects of a varicocele not operated on for long period?
Besides the discomfort or pain, it can cause you to be infertile due to the excess blood in the scrotum keeping your testicle too warm.