Early in fetal development, a mass of cells known as the bipotential gonad has the possibility of giving rise either to ovaries or testes, reproductive organs that contribute to many of the ...

Researchers at the Francis Crick Institute and the Université Cote d'Azur, together with other labs in France and Switzerland, have identified a gene which is an early determining factor of ovary ...

If you’ve been diagnosed with ovarian cancer and want to have a child, fertility preservation techniques or fertility treatments could help. If you think you might want to have a child later, talk to ...

Diminishing ovarian reserve (sometimes called diminished ovarian reserve or DOR), happens when one of your ovaries produces fewer eggs and eggs that are harder to fertilize. This affects your overall ...

Ms. Gross is a science journalist and the author of “Vagina Obscura.” Women, you may have heard, are born with all the eggs they will ever have. It’s one of those factoids that gets repeated ad ...

A new study in Nature shows that when pregnant mice don’t have enough iron, their (usually male) fetuses with a Y sex chromosome sometimes develop ovaries instead of testes. In other words, ...

Ovarian cysts are very common in people who menstruate, with an estimated 10% to 30% of women — and potentially more — developing at least one in their lifetime. These fluid-filled sacs develop in or ...