Male Fertility: 7 Lifestyle Factors Most Men IgnoreOne in six couples worldwide struggles to conceive, and in nearly half of those cases, the issue is on the man's side. In India, the numbers are even more sobering: over 12 to 18 million couples are diagnosed with infertility every year, and male factors contribute to 40–50% of those cases. Yet most men never think about their fertility until there's a problem.
