Video Transcription
Unlike most cancers, testicular cancer doesn't get more common as you get older.
It's primarily a young man's disease and those aged between 15 and 35 are most at risk.
Men should be checking their testicles around once a month, but the truth is less than one in five actually do.
Early diagnosis, however, can be life-saving.
If you're a guide, you don't check your testicles regularly, or if you're not sure you're doing it properly, then watch on.