Male infertility linked to high-grade prostate cancer

INFERTILE men have an increased risk of developing high-grade, aggressive prostate cancer that grows and spreads quickly, research suggests.

Scientists believe there may be as-yet unknown common biological pathways underlying both conditions.

Researchers in the US looked at more than 22,000 men assessed for infertility at 15 Californian clinics. Their incidence of prostate cancer was compared with that of a sample of men of similar age from the general population.