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Is It Normal for One Testicle to Be Bigger?

Is It Normal for One Testicle to Be Bigger?

My one testicle is much bigger than the other and hurts sometimes. How can I find out if it's a problem?
- Brandon*

You should see a doctor very soon. If one testicle is a lot bigger than the other and it hurts at times, it's a sign of testicular torsion. Testicular torsion is a serious problem that needs to be fixed quickly. If it goes on too long, a guy might need an operation to have his testicle removed.

It's normal for guys to have one testicle a bit bigger than the other. A normal size difference is about the size of half a teaspoon —and usually the right testicle is larger than the left.

In your case it sounds like something is going on and you need to see a doctor.

Reviewed by: T. Ernesto Figueroa, MD
Date reviewed: July 2015

*Names have been changed to protect user privacy.