Recent epidemiological studies have revealed an increase in the frequency of genital malformations in male newborns (e.g., un-descended testes) and a decrease in male fertility.

New research strengthens the link between water pollution and rising male fertility problems. The study, by Brunel University, the Universities of Exeter and Reading and the Centre for Ecology & Hydrology, shows for the first time how a group of testosterone-blocking chemicals is finding its way into UK rivers, affecting wildlife and potentially humans.

Obese men should consider losing weight if they want to have children, a scientist told the 24th annual conference of the European Society of Human Reproduction and Embryology today (Wednesday 9 July).

The reproductive function of both men and women starts to fade out with age. A new research conducted by French scientists revealed that men in their forties may face serious fertility problems. The research seems to be especially important in the present-day world when so many couples make career their first priority.

The findings from the research, which have been published in the BMJ journal Occupational Environmental Medicine, show that men who work with solvents such as glycol ether have a 2.5 fold increased risk of having a low motile sperm count compared to men with low exposure.

Researchers at the Royal Veterinary College, London, have made a significant breakthrough in their understanding of how infection of the uterus damages fertility in cows. Their findings, which show that common uterine infections can damage the ovaries, may provide insights into how to treat infections such as Chlamydia in humans.

The sexually transmitted infection Chlamydia has been shown to damage male as well as female fertility. The infection often goes undiagnosed because there are few obvious symptoms but is known to cause infertility in women if untreated.

Scientists have discovered a new enzyme involved in degradation of proteins inside cells, process that helps eliminate or recycle proteins that are no longer needed. The unexpected discovery, made by Marcus Groettrup, chair of the immunology department at the University of Constance, and colleagues, overthrows idea that protein degradation is initiated by only one enzyme. Also, new enzyme is very highly expressed in the testis, which could provide a new understanding of male fertility.

A recent study at Hamilton Health Sciences proves that sperm freezing and banking is an effective way to preserve fertility in adolescents and young adult (AYA) males with cancer.