The cells in the ovary are able to make hair, teeth, and other growing tissues that become part of a forming ovarian
cyst. These cysts
can become large and cause pain
Polycystic ovaries: This condition occurs when the eggs mature within the follicles, or sacs, but the sac does not break open to release the egg. The cycle repeats, follicles continue to grow inside the ovary, and cysts form.
Functional ovarian cysts usually occur during the childbearing years.