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Infertility in Women Over 40



Infertility in Women Over 40
There are a number of factors behind infertility in women over 40. However, one of the leading causes of infertility in women is age. With the stress on stabilizing one's career, many women put their plans of raising a family on the backseat. The result is reproductive failure in older women. This article discusses the trends and causes of infertility in women over 40.As the social scenario has changed, from playing the sole role of a homemaker, women have also taken up the responsibility of earning their families’ daily bread. A woman may not be compelled to fend for her family. However, today, financial independence has become just as important an aspect as any other stereotypical characteristic associated with being a woman. In their endeavor of securing their future, women have been postponing motherhood. Although we have changed sociologically, sadly our biological systems have not kept pace with time. This fact is most evident with respect to fertility in women. As more and more women are planning to start their families late, infertility in women over 40 is a stark fact that many have to face today.

Causes of Infertility in Women Over 40

A woman is born with all the eggs she is supposed to have in her lifetime. As a woman ages the number of eggs left in her start decreasing. This is contrary to the sperms produced in men, in whom the reproductive cells are being continuously produced once they reach puberty. Hence, the difficulty in conceiving, as a woman becomes older. Also the eggs start ‘aging’ over time. Therefore as a woman becomes older, the eggs in her have greater chances of having defects. The result is an increase in the probability of genetic abnormalities like Down’s syndrome in children of older mothers as well as miscarriages. Know more on the treatment for down syndrome and the characteristics of down syndrome.

Besides the facts concerning the number and quality of eggs present in a woman, other factors that influence fertility are:
Hormonal changes
Thinning of the lining of the womb, that becomes hostile to a fertilized egg
Irregular menstrual cycle
Diseases of the reproductive system like endometriosis, polycystic ovarian syndrome (PCOS) and chlamydia. More information on endometriosis and pregnancy.
Vaginal secretions becoming less fluid and more hostile to sperms.
Increase in weight
Fertility and Age - Infertility in Women over 40

There are various causes for infertility in women. However, age is the single most important factor that affects a woman's reproductive capabilities. What is interesting is that most of the reasons for decreasing pregnancy rates (that have been enlisted above), are dependent on the age of a woman. Fertility in women starts decreasing roughly from the 27th year onwards. However, the effects of the changes on the reproductive abilities of a woman as she grows in years, become glaringly evident once she crosses the age of 40. For example, a woman in her 20s has a 20 to 30% chance of getting pregnant every cycle. Chances of a miscarriage is 5% to 10% and the probability that her baby would have genetic defects like Down’s syndrome is 1/1200. In women in early 30s, fertility falls to 15% and the rate of miscarriage increases to 20%. In case a woman in this age does not conceive after actively trying for 9 months, she should seek medical help. At the age of 35 to 40, the rate at which a woman can conceive falls to 10%. The miscarriage rate increases to 25% and the probability of having genetic defects in the fetus increases to 1/350. Most healthcare professionals advise women over 35 to undergo genetic testing to find out genetic abnormalities.

After a woman reaches 40 her fertility rate drops to 5%. The rate of miscarriage increases to 33% and the possibility that genetic abnormalities may occur in a child increases to 1/38. Studies reveal that 90% of the eggs in women above 40 have genetic defects. Also, the pregnancy rate through invitro fertilization (IVF), which is the most successful infertility treatment, is only 10% in women after 40. Hence women in this age group must seek professional help if they do not conceive after having actively tried for 3 months.

Once a woman crosses 45, egg donation becomes the only option for getting pregnant. Pregnancy rate for women over 45 is only 1%. This is because after this age all the eggs in a woman are genetically inviable. Even in case of egg donation, the age of the egg donor is important. Even if the egg donor is young, in case the woman has crossed 45, an important question to consider before she tries to conceive is, whether her body would be able to bear the stress of pregnancy. Although with scientific developments, invitro fertilization has become the answer to infertility problems, this technique has its own problems that are often overlooked. Some of the complications of IVF are premature birth and disabilities in babies. Read more on egg donation procedure and on women's health.

Scientific advancements have perhaps blinded us to the fact that age does have an effect on a woman's reproductive performance. With the increasing trend of postponing pregnancy, infertility in women over 40 is emerging as an alarming fact.