Male infertility common but largely idiopathic, report finds

Male infertility is a factor in nearly one-third of Australasian assisted reproductive technology cycles, but the cause in most cases is unknown, epidemiologists say.
A new report captures data on every assisted reproductive technology (ART) treatment cycle performed in Australia and New Zealand in 2020, including, in a world first, detailed information where the causes of male infertility were known.