Reports of falling sperm counts and testosterone levels have fuelled fears over chemicals, pollution and modern lifestyles. But how much do scientists agree on what is affecting male fertility?

Men’s testosterone levels have fallen by half in last 50 years, scientists warn - Environmental factors like ...

Researchers found "substantial" regional differences in sperm quality, with men in regions with more pollution.

Some donor-conceived people are finding hundreds of siblings. An international cap on donations could help prevent that.

Lambs have been born using an experimental form of IVF that coaxes immature eggs to become mature ones. This could boost the ...

Modern IVF treatment can now achieve substantially higher success rates than historical approaches while dramatically ...

“Patients should be counseled that donor eggs cannot completely eliminate the effects of reproductive aging,” Dr. Beatrice ...

Hospital admissions for miscarriage and ectopic pregnancy have increased in England in recent years, according to research ...

Kyle Gordy donates his sperm online and says he offers a service but some women are warning about the dangers.

Many people have never heard of double donation. Fewer still understand the hidden questions, losses, and emotional work ...

Air quality is linked to a wide range of health issues including respiratory problems, cardiovascular complications, and ...