More than 95% of testicular cancers can be cured, and catching it early means a greater chance of cure, potentially with less aggressive treatment and fewer side effects.

The American Cancer Society (ACS) recommends a testicular exam by a doctor as part of routine check-up.

There is not enough evidence to say for certain that regular testicular self-exams can reduce the death rate from this disease. However, as is the case with women and self breast exams, you should become familiar with what your testicles feel like normally so that you will notice changes if they occur and can bring them to the attention of your doctor.

Here's how to do a testicular self-exam (from the ACS):

The best time to do the self-exam is during or after a bath or shower, when the skin of the scrotum is relaxed. To do a testicular self-exam:

• Hold your penis out of the way and check one testicle at a time.
• Hold the testicle between your thumbs and fingers of both hands and roll it gently between your fingers.
• Look and feel for any hard lumps or smooth rounded bumps (nodules) or any change in the size, shape, or consistency of the testes.

You should know that each normal testis has an epididymis, which feels like a small "bump" on the upper or middle outer side of the testis. Normal testicles also contain blood vessels, supporting tissues, and tubes that conduct sperm. Other non-cancerous problems can sometimes cause swellings or lumpiness around a testicle. Some men may confuse these with cancer. If you have any doubts, see a doctor. If you choose to check your testicles, you will learn to tell what is normal for you and what is different. Always report any changes to a doctor right away.

Sources: American Cancer Society, National Cancer Institute