Ron Davies, from Beddau, says his cancer was easier to treat because it was detected early.
He's urging men in the 'at-risk' categories to talk to their GPs.
"Two factors that are significant are ignorance and embarrassment" he told ITV News.
"Speak to your GP - men over the age of 50 should be having that conversation with their GP, even though they might not be showing any signs or symptoms".
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After a dry end to the day, there'll be a few showers this evening Winds getting stronger overnight.
If you missed tonight's episode of Wales This Week, Test Tube Triumph, you can now catch up here
Jean Davies said her life had become "intolerable". Her daughter Bronwen speaks to ITV News about the decision.