Gradient in
the age and fertility graph of a woman takes steep rise during mid-20s and
steady decline with approaching late-30s. Before a woman actually starts
considering idea of getting pregnant, it sometimes is too late. A woman’s
fertility clock starts ticking at its strongest pace, when she hits puberty and
it gradually declines much earlier than thought. Although, the male fertility declines
leisurely, but for couples with huge age difference face trouble when a partner
five years older or more as sperm quality declines with age.
The most fertile
time of a woman is between the ages of 19 to 26-years, as the chances of
conceiving two days before ovulation are 50 per cent higher. With time, women
become 10 per cent less fertile at 27 and the fertility rate starts sharply
declining in the mid-30s. Sometimes, a late decision leaves a vast barren ground
of infertility before the couples. However, most of the women were seen giving
birth to a healthy baby at 35 without real complications in conceiving but after
35 the proportion of women experiencing infertility
or miscarriage increases as the
rate of fertility drops by nearly 40 per cent between the age of 27 and 34.
After 35, the
fertility rate starts depending on the ages of both the partners. If the age
difference is less, then two out of five women conceive with 30 per cent
chances but couples with larger age difference experience infertility issues as
the chances of conceiving remains less than 20 per cent. It is not that women
stop conceiving, it just takes longer time and more complications. By the age
of 40 only two in five of those who wish to have a baby will be able to do so.
On the other hand, male fertility starts declining at the age of 35. Many men remain fertile into their 50s and beyond, the proportion of men with sperm disorders increases with age. The decline in male fertility is more gradual for men than women. The decline in male fertility can affect the health of the children they may go on to have. Men can remain fertile for much longer than women. Even though male fertility also declines with age, it tends to happen gradually for men.
The reason
behind decline of fertility in women is considered as ovulation problem and
blockages to the fallopian tubes. When a woman hits 30s, she is left with less
number of quality eggs that makes her ovarian reserve decline. And with the approach
of menopause that comes usually around 40s, women are left with meager number
of eggs. In fact, the chances of conceiving non-identical twins are seen mostly
in older women. This is because the struggles to produce more Follicle Stimulating
Hormone (FSH) to make women ovulate at the older age. The hormone is
called follicle. Body produces FSH to fight the fewer viable eggs left in your
ovaries. But the over-production of FSH can result in more than one follicle
ripening and releasing an egg and multiply pregnancies.
However,
with advancement of technologies, the couple need not worry. The upward trend
of IVF has preserved the excitement of
couples wanting have babies at any age. It is suggested to see a doctor after
the age after regular failed attempts of getting pregnant.
Dr Neeraj Pahlajani
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