Infertility is a worldwide problem-about 15% of the population can’t conceive. In 2010, nearly 50 million couples worldwide were unable to have a child after 5 years of trying. Around 40% of infertility cases result from problems in the female partner’s reproductive system, and 40% of infertility cases result from issues with the male’s reproductive system. The remaining 20% are either from a combination of female and male factors, or from causes unknown.
The 2010 statistics reveal that about 2% of women between 20 and 44 years who wanted to have children were unable to have their first live birth, and 10.5% of women who had borne a child before were unable to have another. Research supports that, for both men and women, as age increases fertility typically decreases.