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			Concern Treatment Pregnancy Experiences Concern Evaluating Your Fertility Understanding Fertility Maximise Your Fertility Infertility: An Introduction Infertility in Females Impact of Age Ovulatory Classification of Disorders Clinical Features of Disorders Possible Causes of Disorders Lack of Ovulation Irregular Ovulation Polycystic Ovary Disease Inadequate Luteal Phase Prolactin Disorders Anatomical Chromosomal Disorders Other Causes (Idiopathic) Infertility in Males Implications of Infertility Questions to Ask Your Doctor		Inadequate luteal phase If the corpus luteum fails to function after ovulation, the endometrium will not be prepared for implantation. Infertility will result, even though ovulation and conception occur as normal. Since the corpus luteum functions as an endocrine unit, the cause of an inadequate luteal phase is hormonal. In a small minority of women, the cause can be attributed to abnormal thyroid function or to hyperprolactinaemia and may be indicated by abnormally frequent, scanty menses. Of the remaining women, the vast majority will exhibit normal ovulation patterns and are candidates for 'luteal support' with progesterone therapy to establish luteal phase conditions in the endometrium and support implantation and ongoing pregnancy.
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