Polycystic ovary disease, previously known as Stein- Leventhal syndrome, is a disorder in which numerous benign cysts form on the ovaries under a thick, white covering. It is most common in women under 30 years old. The ovaries are the female reproductive organs that contain and release eggs. They also produce the female hormones estrogen and progesterone. Ovarian cysts are fluid-filled sacs that result from ovulation cycles.
Many ovarian cysts disappear without treatment.
The most common are just enlargements of the normal egg follicles. Polycystic ovary disease is due to an abnormal production of two of the hormones produced by the pituitary gland in the brain. Imbalance of these hormones prevents the ovaries from releasing an egg each month. It also results in an increased production of the male hormone testosterone by the ovaries. In many women with polycystic ovaries, menstruation begins at the normal age.