The male infertility crisis is an observed increase in male infertility in recent decades.[1] The earliest indications of this decrease first emerged in the 1970s. From this period, there has been a steady decline of 1.4% in sperm counts with an overall decline of 52.4% over approximately 40 years.[2][3] The crisis is particularly prevalent in the West such as New Zealand, Australia, Europe and North America. A reduction in other parts of the world has yet to be observed.[4]
In its original form, it had begun as a study on male fertility. Evolving into a term used by journalists in the media as a common headline for the reporting for studies concerning sperm, infertility and declining male sexual performance.[5]
Hypotheses for the causes of the crisis is still subject to ongoing further research. Existing research cites lifestyle factors and the presence of hormone-disrupting chemicals, known as endocrine disruptors, in the environment.[4]
The effects and the issues caused are in the progress of development. As the understanding of the effects on individuals, family and society are ongoing subjects for further studies.
This topic has been subject to rigorous debate in regards to the nature and exact degree of crisis that is exhibited in male fertility. However, it has generally been accepted within the scientific community as a key issue of male health.[6] Their aim is to bring the issue to the forefront of media and to public attention.