For women, follicles only grow and expel periodically when the ovarian function is mature, and the normal number of left and right follicles is less than 12 or less. If a woman is found to have more than 12 follicles on her ovaries and there are no dominant follicles, but all small follicles of 2-4mm, this is called polycystic ovarian changes. As a result of the inability to ovulate or the rare ovulation, the menstrual cycle is often delayed and may even be amenorrheic. Increased androgens may result in facial acne and thick pubic hair. A hormone test may reveal a luteinizing hormone to follicle stimulating hormone ratio of more than 2 and an increase in androgens or prolactin.