In humans, that supply dwindles until menopause, when it goes bankrupt. Over the past two decades, scientists have identified ...

Producing follicles isn’t the only task for ovaries, new research suggests. (Steve Gschmeissner/Science Photo Library/Getty ...

Are female mammals born with all the eggs they'll ever have, or can they produce new eggs into adulthood? The question has been vociferously debated, but now, a study published online in Nature Cell ...

For years, scientists have sought to create a human artificial ovary, restoring fertility in patients without other options. The first cellular map of a human ovary, recently developed at the ...

Women are born with a fixed number of eggs (oocytes) in their ovaries. This egg supply – known as a woman’s ovarian reserve – decreases with age. If a woman has diminished ovarian reserve (DOR), it ...

This series was created for Google, the Buck Institute, Optispan and Phenome Health by Scientific American Custom Media, a division separate from the magazine’s board of editors. Women live far longer ...

Streak ovaries are when the ovaries do not develop correctly before birth. This causes the individual to have nonfunctioning ovaries and experience various symptoms. Ovaries are the small oval-shaped ...

The ticking of the biological clock is especially loud in the ovaries — the organs that store and release a woman’s eggs. From age 25 to 40, a woman’s chance of conceiving each month decreases ...

The arc of a biological female’s life is often defined by milestones involving her uterus. A first period. A first pregnancy. A first birth. All of which lead up to the concluding event: menopause, ...

Scientists have discovered why ovarian cancer spreads so rapidly through the abdomen. Cancer cells enlist normally protective abdominal cells, forming mixed groups that work together to invade new ...

Ovarian cystic neoplasms are ovarian tumors that have cyst-like qualities. They can include epithelial ovarian tumors and germ cell tumors called teratomas. Ovarian cystic neoplasms can be benign, ...