IVF Success Rate By Age | What Impacts Your IVF Success?

The average success rate of IVF Success  by age in the fertility centre in Delhi in India, is less than 50%, according to reports.  

Though it is not bad and quite at par with the global success rate of IVF, there are different factors that influence it. Usually measured by the Live Birth Rate or LBR, apart from the age, the success of IVF in relation to age depends on the following:

  • The procedure followed in the fertility centre in delhi
  • Fertility issues and their types
  • Pregnancy history and 
  • Even the lifestyle.

IVF success is a complex subject, just like the process itself. Therefore, it will need exploring deeper for a better understanding.

Fortunately, you are at the right place. 

Reasons for Fluctuating IVF Success Rates by Age in Fertility Centre in Delhi 

The difference in the success rate for In Vitro Fertilization (IVF) treatment in the fertility centre in delhi is pretty wide and distinct. 

Ideally, it is the highest for a clinic if the patients treated comprise mainly those who do not have any children. 

IVF Success

The rate seems to fall steeply when women have experienced pregnancy before being treated. Also, the rate tends to fall when the number of pregnancies in a woman increases.

The doctors in the fertility centre in delhi have a proper explanation for this, both medically and statistically proven. 

According to them it is all due to the IVF started cycle and each embryo transfer.

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These factors influence the success of a woman undergoing IVF treatment, apart from her age.

There are lots of research reports that prove that women all over the globe have optimal reproductive quality in their late 20s and 30s. After that, there is a significant decline noticed in their reproductive quality pattern.

This invariably influences the IVF success rate in the fertility centre in delhi.

IVF Success Rate Assessment by Age 

For a better understanding, here is a breakdown of the rate of IVF success in two major age groups.

Under 35:

In simple words, women in this category are considered to be highly fertile. The success rate is high for this category, even if a woman has had a pregnancy or conceived before. As said earlier, it is a tad more than 40%.

Suggest to read:- Precautions During Early Pregnancy to Avoid Miscarriage

On a global scale, according to the IVF Success Estimator of The Centre for Disease Control, the rate of success for different types of infertility is estimated as follows:

IVF Success

About 33% of women below 35 years of age who have not conceived earlier have a higher possibility of conceiving through IVF.

Over 40:

In comparison, the IVF success rate for women over 40 is less than 20%. It may even fall to single digits once they cross 42 years of age, according to the reports of a fertility centre in delhi. This is mainly due to the age-related maternal egg drop and its low quality.

According to CDC, for older women, the stats are as follows:

  • 10 to 20% chance of success in one IVF cycle
  • 14% in the IVF duration and
  • 5% LBR
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With an increase in age, the success rate falls to 3% in pregnancy and 1% live birth for women over 45 years of age.

However, the chances of success in older women increase only when specific processes are followed, such as:

  • Preimplantation Genetic Testing for Aneuploidies or PGT-A before embryo transfer and 
  • Using donor eggs.

Factors Impacting the Success Rate

Here are some other factors than age that may affect the success rate of IVF treatment:

  • Medical conditions and fertility issues, including PCOS, endometriosis, and lower ovarian reserve
  • Embryo quality, including its genetic and morphological health
  • Age of the male, which affects the quality of male sperm due to increased DNA fragmentation
  • The lifestyle of males, such as smoking, diabetes, drug addiction, excessive drinking, hypertension, varicocele, and infection that may damage sperm and 
  • Low sperm count in males and ovulating problems in females.

And, of course, the expertise of the doctor and the procedure followed also influence the IVF success rate.


IVF is one of the most successful options for achieving parenthood. Though the rate of success is not exceptional, it has improved quite significantly over the past few years. Modern IVF treatments offer several affordable options as well.

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