Ovulatory disorders are one of the most common reasons why women are unable to conceive, and account for 30% of women's infertility. Hormonal Problems Failure to produce mature eggs Malfunction of the hypothalamus Malfunction of the pituitary gland Scarred Ovaries Physical damage to the ovaries may result in failed ovulation. For example, extensive, invasive, or multiple surgeries, for repeated ovarian cysts may cause the capsule of the ovary to become damaged or scarred, such that follicles cannot mature properly and ovulation does not occur. Infection may also have this impact. Premature Menopause this presents a rare and as of yet unexplainable cause of anovulation. Some women cease menstruation and begin menopause before normal age. It is hypothesized that their natural supply of eggs has been depleted or that the majority of cases occur in extremely athletic women with a long history of low body weight and extensive exercise. There is also a genetic possibility for this condition.