Ovarian follicles are small fluid-filled sacs inside the ovaries. ... The ovaries are part of the female reproductive system that lie on either side of the uterus in the lower abdomen.

Where Are the Ovaries Located? Your ovaries sit on either side of your uterus. They’re held in place by muscles and ligaments. They’re typically egg-sized but shrink after menopause.

Uterus: The uterus is a hollow, muscular organ. During pregnancy, a fetus develops in the uterus. Ovaries: The ovaries hold eggs and produce the female reproductive hormones estrogen and progesterone.