Although uncommon, cancer of the testis is the most common cancer in young men in the UK
About 1 in 500 men between the ages of 15 and 50 develop cancer of the testis. 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 your testes normally feel. Any changes would then be easier to detect. This is especially important for brothers of people with cancer of the testis as they have a higher than average chance of developing this type of cancer.
The best time to feel your testes is after a bath or shower when you are relaxed. Hold each testis in turn in the palm of a hand, and use your finger and thumb to gently feel the testes and nearby structures.
It is normal for one testes 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, and 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
What changes should I look out for?
If you notice any change in size or weight of a testis, or any abnormal lumps, swellings, or tender spots, then see your doctor or practice nurse. Doctors & nurses are used to examining 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. Cancer of the testis usually starts as a small, hard, painless lump on one testis which you can feel away from the normal soft lump of the epididymis.
What if it is cancer?
Treatment of cancer of the 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.
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