Get to Know Your Testicles (Testes)

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If you are a young man or teenage boy, you should be aware of how your testicles (testes) normally feel. Report any changes or lumps to your doctor.

Although uncommon, cancer of the testicles (testicular cancer) is the most common cancer in young men in the UK. About 1 man in 500, aged between 15 and 50 years, develops testicular cancer. The exact cause is not known. However, if caught early it is one of the easiest cancers to treat and cure. So, If you are a teenage boy or young man, you should get to know how each testicle (testis) normally feels. Any changes would then be easier to detect. This is especially important for brothers of people with testicular cancer, as they have a higher-than-average chance of developing this type of cancer.

Cross-section diagram of a testis

The best time to feel your testes is after a bath or shower when you are relaxed. Hold each testicle (testis) in turn in the palm of a hand and use your finger and thumb gently to feel the testes and nearby structures.

It is normal for one testis to be slightly bigger than the other and for one to hang slightly lower than the other. The testes themselves feel like smooth, soft balls inside the baggy scrotum. At the top and to the back of each testis is the epididymis (this stores the sperm). This feels like a soft swelling attached to the testis; it can be quite tender if you press it firmly. Leading from the epididymis is the vas deferens. You can feel each vas deferens at each side at the back and top of the scrotum. They feel like soft, narrow tubes which pass up and into the groin. (The vas deferens carries the sperm to the penis.) Some people confuse the normal epididymis or vas deferens with an abnormal lump.

If you notice any change in size or weight of a testicle (testis), or any abnormal lumps, swellings, or tender spots, see your doctor. Doctors are used to examining testicles (testes) and will be able to advise if the abnormality is serious or not.

Note: most abnormalities are not cancer. For example: collections of fluid, infections, and harmless cysts are common and treatable. Testicular cancer usually starts as a small, hard, painless lump on one testis, which you can feel away from the normal soft lump of the epididymis.

Treatment of cancer of the testicle (testis) is often effective. In more than 9 in 10 cases, treatment can result in a complete cure. However, the earlier it is detected, the easier it is to treat. More than a third of people with this cancer consult their doctor after the cancer has spread, which makes treatment more difficult. Often this is because of unfounded fears, or just hoping it will go away.

Original Author:
Dr Tim Kenny
Current Version:
Peer Reviewer:
Dr John Cox
Document ID:
4346 (v40)
Last Checked:
Next Review:
The Information Standard - certified member
Now read about Lumps in the Groin and Scrotum

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