The Male Infertility Crisis
One in twenty young men now have sperm counts that are low enough to make it difficult to have children, according to Professor Christopher Barratt, an expert on reproductive medicine at the University of Dundee in Scotland.
Sperm count varies enormously, from zero sperm per milliliter (spm) of semen to 250 million or more. Above 40 million spm there is little gain in fertility but, below that figure, the fertility graph plummets. According to the World Health Organization, a count of less than 15 million spm, is defined as what is called oligozoospermia – which means that the man is likely to have difficulties in conceiving, and that struggle steeply increases as the count moves towards zero.