How to check your testicles

Testicular cancer is a young mans disease, and yet this is the age group that has the greatest sense of invincibility from the illness. Dr Harper demonstrates the technique you can use to self-examine your balls, and as its best carried out in the shower, its a great excuse for taking a bit longer in the morning. If youd prefer to carry out this check away from your computer, then download our specially produced version for your mobile phone from the Channel 4 Mobile site.