The number of infertile men in their 50s is rapidly increasing... 33% increase in 5 years = South Korea

In South Korea, the total birth rate was recorded at 0.78 children last year, but it was confirmed that the number of male infertility patients increased by more than 7,300 over five years. In particular, the number of infertility patients among men in their 50s has increased compared to five years ago.