 |
 |
 |
 Concern
 Treatment
Pregnancy
Experiences
Concern
|
 |
Ovulatory
Failure of ovulation is the single most common
cause of infertility in females. Over 40% of women who are
infertile have an ovulatory problem. The normal ovarian cycle is so
complex that even small deviations may disrupt the cycle and
prevent ovulation. However, with modern treatment there is a very
good chance that pregnancy will eventually be achieved in these
women.
Before considering the reasons for dysfunction or
failure of ovulation, it is important to review the physiology of
the normal ovarian cycle.
The normal cycle is under the control of the anterior pituitary
hormones, FSH (follicle stimulating hormone) and LH (luteinising
hormone). The secretion of these hormones is influenced by GnRH
(gonadotropin-releasing hormone) from the hypothalamus, and by
circulating levels of oestrogen and progesterone.
A summary of the main stages of the ovarian cycle is shown below
and is discussed in detail in Understanding
Infertility.
Ovulatory disorders are most often caused by deficiency in one of
the controlling hormones. However, problems can also arise if the
ovaries themselves are resistant to normal levels of hormones. In
addition, absent, damaged or diseased ovaries will prevent
ovulation.
The issue of Ovulatory disorders is broad and complex, so we’ve
broken it down into some key areas for you:
|
|
 |
|
|
Home
About Serono
