Ovarian endocrine factor is one of the causes of female sterility. Any alteration in the stages of the ovarian cycle can lead to an anovulatory cycle, associated with a wide spectrum of menstrual alterations.
Every woman can be diagnosed with temporary anovulatory cycles. They should not to be mistaken for chronic anovulation, which is what causes sterility.
The different sections of this article have been assembled into the following table of contents.
Causes of anovulation
Chronic anovulation may have different causes in accordance with the classification given by the World Health Organisation (WHO):
- Group I or hypothalamus and pituitary disfunction.
- Group II or alteration in the hypothalamus-pituitary secretion: includes the polycystic ovarian syndrome.
- Group III or primary or secondary ovarian failure.
- Group V: women with hyperprolactinaemia and evident lesion in the hypothalamic-pituitary axis.
- Group VI: women with hyperprolactinaemia that don't present evident lesion in the hypothalamo-hypophyseal axis.
- Group VII or amenorrhea.
Causes of menstrual irregularities
In regular menstrual cycles, there are three scenarios that may produce ovarian factor sterility. These are:
- Occult or hidden ovarian failure.
- Luteinised unruptured follicle syndrome (LUFS)
- Luteal phase defect (LPD).
FAQs from users
Are premature ovarian failure and early menopause the same thing?
Menopause is defined as the absence of menstruation for at least one year, and this is a situation that usually occurs around the age of 51-52. We talk about early menopause when it occurs before the age of 40.
Although menopause is the final consequence of functional ovarian failure, and therefore it can be expected to happen over time, there may be a paradox that ovarian failure exists but that menstruations still occur with a certain regularity. It’s what we call occult ovarian failure.
Therefore, although related, both concepts cannot be confused since the definition of menopause is very specific and concrete.
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FAQs from users: 'Are premature ovarian failure and early menopause the same thing?'.