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What Might Cause a Problem With Ovulation?
Abnormalities in ovulation have different levels of severity and may occur for a variety of reasons. If there is a lack of ovulation, there will often be a lack of menstrual flow (called amenorrhea). If there is a less complete disruption of ovulation, there may be irregular menstrual intervals.
Causes of ovulatory dysfunction that result in menstrual changes can be categorized into:
Available Drawings:
Amenorrhea may additionally be caused by non-ovulatory problems such as anatomic abnormalities that either do not allow for the growth of the uterine endometrium (such as following an hysterectomy) or do not allow the lining that is shed to exit the body via the vaginal vault (such as with an imperforate hymen).
A different set of medical concerns exists if the woman has “never menstruated” (primary amenorrhea) as opposed to the absence of menses in a woman who has previously had a spontaneous menstrual flow (secondary amenorrhea). Any female who has not had a menstrual flow by the age of 14 in the absence of secondary sexual characteristics (such as breast development) or the age of 16 (regardless of secondary sexual characteristics) should consult a gynecologist or infertility specialist with training in reproductive endocrinology.
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