The testicles, also known as balls, gonads or huevos, are the part of the male body that produces sperm and stores it until a male ejaculates. Testicles also produce male hormones.
Lumps in the Scrotum
Most lumps in the scrotum are cysts, which are collections of fluid. Some go away on their own while others require surgery. See a doctor for more information.
Boys and men can also get cancer of the testicles and scrotum, and the first symptom is often a lump in the scrotum. The earlier the cancer is detected, the easier it is to treat, so doctors recommend that males regularly complete a testicular self-examination (TSE) starting when they are 15 years old.
The Community Health Resource Centers in Dublin, Fremont, Mountain View and Palo Alto have a short video and a model to help you learn how to perform a TSE.
Testicular cancer is a form of cancer that specifically affects testicles. It's highly treatable and usually curable, as long as it's treated early. Men between the ages of 15 and 40 are the most likely group to get testicular cancer.
If you think something may be wrong or you feel a lump, see your doctor. Remember to do a monthly testicular self-examination (TSE).
Your testicles might begin to ache if you have an erection for a long time without an ejaculation, or if the penis gets soft again after an erection. This condition will usually go away in a few hours.
Pain in the Testicles
Here are some explanations if you have pain in one of your testicles:
- Sometimes that just happens.
- It may be related to getting sexually aroused, then not ejaculating.
- It may be related to muscle tension; if so, a warm bath helps.
- It may be related to a minor injury such as bumping the testicle or wearing pants that are too tight.
- It may be related to an infection. If you have an infection, you’ll usually feel some burning when you urinate. See your doctor.
If the pain doesn't go away, seems to be getting worse, or if you notice any change in the shape of your testicle (such as a lump, bump or growth), see a doctor.
Last Reviewed: October 2018