Reproduction

Without the gene Poc5, male mice produced no viable sperm, pointing to a possible link to infertility

In a reversal, the Food and Drug Administration has removed black box warnings on hormone replacement therapies for menopause

Some scientists are concerned that the Trump administration will use “junk science” when reviewing mifepristone’s safety record

Less than 1 percent of clinical trials include pregnant or breastfeeding people. Experts say that needs to change

Artificial tissues that mimic the placenta, endometrium, ovary and vagina could point to treatments for common conditions such as preeclampsia and endometriosis

Steep population declines in most countries are expected to have negative effects over the next several generations, but adaptation is possible

Analyzing embryo movements in uteruslike environments could offer clues to improving the success rate of in vitro fertilization

A new hormone-free birth control pill that reversibly stops sperm production has passed its first safety trial in humans, offering hope for more reversible contraceptive options.

A hormone-free pill, called YCT-529, that temporarily stops sperm production by blocking a vitamin A metabolite has just concluded its first safety trial in humans, getting a step closer to increasing male contraceptive options

Long-awaited results of a three-person IVF technique suggest that mitochondrial donation can prevent babies from inheriting diseases caused by mutant mitochondria

A new study suggests a way to more accurately test sperm health from home.

A physics-based sperm-screening technique could offer a more accurate at-home test for people trying to conceive