IVF Success Rates by Age and Number of Embryos (2024)

IVF SUCCESS RATE IN INDIA

IVF success rates in Indiafalls between 30-35 per cent, as calculated by the Obstetrics and Gynaecology department under the guidance of Dr. Alka Kriplani of one of the prominent hospitals of India, situated in New Delhi, known as All India Institute of Medical Sciences (AIIMS). During a good run of the treatment, the success rates tend to increase up to 40%. The resulting calculations of success rates by (AIIMS) are highly comparable with many other nations as the number being quite high for women under 35 years of age.

Apart from AIIMS, there are many private clinics in India that are more likely to claim about their success rates being 2 to 20 times higher. They have specified the 70 – 80% success rates for women under 35 and 40 – 50% chance for over 40 years of age.

India has been greatly developing in the field of medicine and technology as well. It had been years since IVF treatment came in India and was widely accepted and adopted by couples facing infertility problems. The success rate as talked about earlier greatly varies and depends upon a wider range of factors in IVF, the age, the lifestyle, the cause of infertility and of course the most important factor “embryo”.

IVF is also known as In-vitro Fertilization is a commonly referred fertilization treatment for couples, single parents and also for a couple of the same gender who want to have a baby. This procedure is generally 6-8 weeks long procedure as first the person has to get ready mentally and physically, followed by taking medicines for egg maturation, leading towards extraction of the eggs from the ovary, eggs are then fertilized with the sperm in a laboratory and implanted back into the womb when it turns into an embryo for further developing into a baby.

Dr. Shalini Explained that, “Many of the people facing infertility in their marriage life usually get into a situation where they think that should they take up the IVF procedure or not? Will it work for them or not? This is because IVF is a time taking and costly process for treatment.” Though it is impossible to predict the exact result of the success of the treatment but definitely there are research and calculations done by the specialist to find out approximate IVF success rate by age and embryos. However, we would still suggest not to keep any false high hopes as every human body has its own reaction and working agenda towards the treatment, what may have worked for others may not work for you or vice versa.

IVF SUCCESS RATES BY AGE

One of the prominent factors that are most likely to affect the success rate of the whole IVF treatment is “age” of the woman undergoing IVF treatment. Age has prominence in women pregnancies since long, no matter is it is a natural pregnancy or an artificial pregnancy treatment. Similarly, it plays a significant role in IVF treatment as well. Although, it had been noticed, that women of lower age group, are most likely to have higher IVF success rates, whereas women of comparatively older age group, tend to face a decrease in the success rates of this treatment. We will further look into it by the age category.

IVF success rates under 35

It is said that women under 35 and especially in their 20’s have higher success rates with regards to age as this the period when they are most fertile. Women who don’t have any identified fertility issues have a 20% success rate of pregnancy but on the other hand if women are facing any kind of infertility issues like less number of eggs, genetic disease, partners infertility or same-sex relationship then they would take up IVF for which the success rates are assimilated as per the research of CDC- The Centers for Disease Control below:

  • The success rates are higher in women under the age of 35 as compared to those who are above 35 undergoing the IVF treatment.
  • If the woman has never ever conceived before and is under 35 then it is more likely for her that she would conceive in 32% of cases.
  • If women have had a child before then there are 37 percent of chances for IVF cycle to work and result in a successful pregnancy under the age of 35.
  • If a woman is in her 20’s then there are 34 percent chances for IVF cycle to work with 2 or more than two children.

Though the number seems to be comparatively low, further research shows that the IVF success rates for women in their 20’s are very likely to result in success. Approximately there are 40-43 percent chances of embryo transferring to turn out into a successful pregnancy. Also, IVF is considered as one of the costly infertility treatments and patients expect it to work in one cycle, so as to save money. As per the CDC data analysis, it has been calculated that women falling in the category of under 35 have a 52 percent chance of acquiring pregnancy by only one round of IVF.

IVF Success rates over 40

Women are not likely to conceive when over or in their 40’s, in earlier generations it was not even near possible to have a baby in the 40 or more years of age for women but with emerging new technologies and various innovations like assisted reproductive technology (ART), it is now possible for women over the age of 40 to have a baby and enjoy motherhood even they are hitting close to menopause.

As per the research done by the Centers of Disease control also known as CDC and the Society for assisted reproductive technology also known as (SART), it has been revealed that if we use fresh embryos for the treatment then IVF success rates over 40 are as follows:

  • For 40 years old, there are 20 per cent chances for IVF cycle to work and 14 per cent if going for live birth.
  • For 41, the chances are 15 per cent in IVF cycles and 10 per cent for live birth.
  • For 42, it is 12 per cent and 7 per cent for both IVF cycle and lives birth, respectively.
  • For 43 years, the number decreases to 8 per cent and there are only 3 per cent chances for a healthy delivery.
  • For 44 years of age, it is a 6 percent chance of IVF resulting in pregnancy and 3 percent of a live birth chance.
  • Lastly, women ageing 45 or above have only 3 per cent chances of pregnancy by an IVF treatment and only 1 per cent for the live birth.

If you want to undergo just one round of IVF cycle to acquire pregnancy at the age of 40 then the chances are of only 8 percent that you would result in getting pregnant. So, it is recommended that you should go for more than one round at least. Also, it is important to state that doesn’t presume your personal results according to this data because every human body has its own tendencies and there many other factors that play a considerable role in the success rate of this treatment.

IVF SUCCESS RATE BY NUMBER OF EMBRYOS

There are plenty of factors affecting the success rate of IVF (in-vitro fertilization) treatment but one of the most important factors which efficiently decide the success rate is an embryo, the number and the quality of the embryo. Most of the failure in the treatment occurs due to false quality embryo used in the treatment. There are techniques like PGD (Pre-implantation diagnosis) which helps the doctor to carry out the most efficient embryo for IVF Treatment. There are embryos that look efficient by outer appearance but are lacking factors needed for pregnancy but on the other hand embryos which don’t look efficient on the outer appearance are most likely to have all the efficiency required for successfully and to determine, differentiate and further select the appropriate embryo the PGD technique is used by the doctors.

Single vs. Multiple embryos

It is recommended that when carrying out IVF treatment only single embryo transfer is considered to be healthy for the pregnancy results. The most important factor for a mother is the health of the baby, so if we transfer multiple embryos the chances of having twins and multiple births increases along with which the risk factor for the baby also increase its level simultaneously. Also, the success rate for both single embryo transfer and multiple embryo transfer is more or less similar. No matter how many numbers of the embryo for IVF are used, one should not neglect the risk factor.

As per one of the studies of “fertility research and practice” it had been calculated that the success rate of “single embryo transfer” was 45% whereas for “Double embryo transfer” was 42%. This clearly shows that it is more likely to be more or less similar to each other. So single embryo, is most likely to be safe and sufficient number of embryos for IVF treatment.

IVF Success Rates by Age and Number of Embryos (2024)

FAQs

IVF Success Rates by Age and Number of Embryos? ›

If you've been trying to conceive for a while, the idea of increasing your chances by transferring two or more embryos may seem tempting. In most cases, women under the age of 38 – as well as women who have had fewer than two unsuccessful embryo transfers – are typically recommended to transfer two embryos.

What is a good number of embryos for IVF? ›

If you've been trying to conceive for a while, the idea of increasing your chances by transferring two or more embryos may seem tempting. In most cases, women under the age of 38 – as well as women who have had fewer than two unsuccessful embryo transfers – are typically recommended to transfer two embryos.

Is IVF more successful with 2 embryos? ›

As mentioned earlier, transferring two high-quality embryos can greatly increase the chances of multiple pregnancy, but only slightly increase the chances of pregnancy. When we transfer two embryos, not only may the rate of miscarriage be higher, but also that of pregnancy complications.

What is the ideal number of embryo transfer in IVF? ›

Transfer of a euploid embryo should be limited to one, regardless of patient age. Patients <35 years of age should be strongly encouraged to receive a single-embryo transfer, regardless of the embryo stage. For patients between 35 and 37 years of age, strong consideration should be made for a single-embryo transfer.

What is the success rate of 4 embryo transfers? ›

Results: The cumulative clinical and viable pregnancy rates after four ETs were 92% and 88%; 87% and 82%; 83% and 69%; and 68% and 52% for age groups <30, 30-34, 35-39, and 40-44. The cumulative rates decline with age.

Is 10 embryos good for IVF? ›

As a rule of thumb, however, having about ten to 12 mature eggs after egg retrieval (not all eggs retrieved will be developed or mature enough to fertilize) is a good number of eggs and will give a woman a good chance of having at least one normal embryo, which gives a woman a 65 percent chance of pregnancy.

How many embryos make it to day 5 IVF? ›

As a general rule of thumb, at RMA, which has one of the best embryology labs in the country (as evidenced by the clinic's high success rates), about 80 percent of eggs will fertilize (day 1 success), and of those, about 30-50 percent will make it to the blastocyst stage (day 5 or 6).

Is it better to implant 1 or 2 embryos? ›

They should make this decision only after carefully considering the risks to infants and mother, their desire for multiple children, their finances and their clinic's implantation rate. At the Fertility Center of Las Vegas, we strongly recommend the transfer of a single embryo in all cases.

How many blastocysts are normal for IVF? ›

There is tremendous attrition from egg numbers to blastocysts for transfer or freezing. Typically, it goes something like this: 10 eggs, 8 mature eggs, 6 fertilized embryos, 4 eight cell embryos, 2 to 3 blastocysts. If the egg numbers are larger than 20, we typically have more immature eggs in the bunch.

How many embryos are usually implanted in IVF? ›

To this end, some experts have advocated the transfer of only one embryo at a time for many patients, a practice known as single embryo transfer, or SET. Even SET, however, cannot guarantee a singleton pregnancy, since some embryos can on rare occasion “split” and result in two identical twins.

How many rounds of IVF on average? ›

Number of IVF Cycles

Most individuals and couples undergo two to three IVF cycles before conception has taken place. Sometimes, women abandon the IVF process too early, such as after only two or three cycles. Yet, there is some evidence showing that success rates increase with more IVF cycles, such as after six cycles.

What is the average number of IVF transfers for success? ›

On average, research has shown that about 65.3% of patients, or two-thirds, have a successful outcome after six or more IVF cycles. This is especially applicable to IVF patients under the age of 40. There are specific factors that impact the success of an IVF procedure.

What happens to unused embryos in IVF? ›

In some cases, surplus embryos are transferred to the woman in the couple; in other cases, couples choose to donate their embryos for stem cell research. It is a donation of cells. I see it as giving a chance to a couple that tried and failed to become pregnant. It is about giving them something to hope for.

Which embryo transfer is most successful? ›

Pregnancies resulting from frozen embryo transfers have better outcomes than those of fresh embryo transfer. There is less incidence of gestational hypertension, intrauterine growth restriction, preterm birth in FET pregnancies and the babies born are heavier and healthier.

What is the success rate of IVF grade 4 embryos? ›

Impact of Grading on IVF Success Rates
Embryo QualityEmbryo GradePregnancy Rate
Excellent3AA, 4AA, 5AA65%
Good3AB, 4AB, 5AB, 6AB, 4BA, 5BA, 6BA55%
Average3BB, 4BB, 5BB, 6BB30%
Poor4BC, 5BC, 6BC, 4CB, 5CB, 6CB10%
Mar 12, 2024

Which grade embryo is best? ›

Whereas an AA quality embryo is the very best an embryo can be graded, healthy babies are born from embryos grade all the way through to a CC quality embryo . So, it's important to remember embryo grades are only indicative of the potential to implant and not the final outcome of a pregnancy.

How many IVF embryos are genetically normal? ›

Approximately 40% of human blastocysts are genetically normal, however this reduces to 25% if the woman is aged 42 at the time the eggs were collected.

What are ideal IVF numbers? ›

Women under 38 in our IVF program have acceptable live birth rates even with only 3 – 6 eggs, do better with more than 6 eggs, and do best with more than 10 eggs. Women 38-40 and 41-42 years old have low live birth rates with low egg numbers. Success rates are much better when relatively high egg numbers are obtained.

Is 15 embryos good for IVF? ›

A study of more than 400,000 IVF cycles has found that doctors should aim to retrieve around 15 eggs from a woman's ovaries in a single cycle for the best chance of achieving a live birth.

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