Average IVF Egg Retrieval by Age: What the Numbers Mean

The average number of eggs retrieved in IVF generally decreases with age because ovarian reserve falls over time. However, an individual retrieval result cannot predict success on its own: egg maturity, fertilisation, embryo development and uterine factors also influence the treatment plan.

Average number of eggs retrieved in IVF by age

The average number of eggs retrieved in IVF by age usually falls as ovarian reserve declines. In broad terms, people under 35 often retrieve around 10 to 20 eggs in a stimulated IVF cycle; those aged 35 to 37 may commonly retrieve about 9 to 15; those aged 38 to 40 may retrieve roughly 6 to 12; and people over 40 often retrieve fewer eggs, sometimes fewer than 5 to 8. These are general clinical ranges rather than targets or predictions for any one person.

Egg retrieval numbers vary substantially. Some younger patients produce a small number of eggs, while some older patients produce more than expected. The number collected is influenced by the number of recruitable follicles, the medication protocol, the dose and timing of the trigger injection, conditions such as polycystic ovary syndrome, and how the ovaries respond during monitoring.

Not every retrieved egg is mature, and not every mature egg fertilises or becomes an embryo suitable for transfer or freezing. For this reason, fertility teams consider the whole pathway rather than interpreting the retrieval number alone. A smaller number of high-quality embryos may be more meaningful than a larger number that do not continue developing.

Why age affects egg number and egg quality

People with ovaries are born with a finite supply of immature eggs. The pool naturally decreases throughout life, and the pace of decline becomes more noticeable in the later 30s and 40s. IVF medicines can help several follicles grow in one cycle, but they cannot create new eggs or fully reverse age-related changes in the eggs that remain.

Age affects two related but different factors: egg quantity and egg quality. Quantity refers to the number of eggs remaining and likely to respond to stimulation. Quality relates partly to the chance that an egg has the correct chromosome number and can develop into a healthy embryo. Chromosomal changes become more common with advancing maternal age, which is why pregnancy rates per embryo transfer may decline even when eggs are retrieved.

Ovarian reserve tests provide useful context, but they do not measure egg quality directly and cannot determine an individual’s chance of pregnancy with certainty. A fertility specialist may use anti-Müllerian hormone (AMH), antral follicle count on ultrasound, and early-cycle hormone testing to estimate likely ovarian response. These findings may be discussed as part of an infertility assessment when pregnancy has not occurred as expected.

What's a good egg retrieval count by age?

A good egg retrieval count is one that reflects a safe, appropriate ovarian response and provides a realistic opportunity to obtain mature eggs and embryos. There is no single “good” number that applies to everyone. In many IVF settings, retrieving approximately 8 to 15 eggs is often considered a balanced response, but a lower or higher number may be entirely appropriate for an individual.

For a person in their early 30s, a result below 8 eggs may prompt discussion about ovarian reserve, medication response or whether more than one cycle could be helpful. For someone in their early 40s, retrieving several mature eggs may be a meaningful outcome because fewer eggs are often expected. The most relevant comparison is not with an online average, but with the person’s age, test results, previous response and treatment goals.

Very high egg numbers also require careful management. A strong response can be associated with ovarian hyperstimulation syndrome, particularly in people with polycystic ovary syndrome or high ovarian reserve. Fertility teams can adjust medications, alter the trigger approach or recommend freezing embryos for a later transfer to help reduce risk.

• Retrieved eggs: eggs collected from the follicles.
• Mature eggs: eggs that are ready for fertilisation.
• Fertilised eggs: mature eggs that form normally fertilised embryos.
• Blastocysts: embryos that continue developing to a later laboratory stage.

At what age are 90% of a woman's eggs gone?

There is no precise age at which 90% of a woman’s eggs are gone for every individual. Egg loss begins before birth and continues throughout life, but the starting number and rate of decline differ from person to person. Research on ovarian ageing suggests that a substantial proportion of the original egg supply has already been lost by puberty, and the decline accelerates later in reproductive life.

Rather than focusing on one percentage or birthday, clinicians look for signs of current ovarian reserve and reproductive function. Regular periods do not necessarily mean that ovarian reserve is high, and a low AMH result does not mean that pregnancy is impossible. These measures help guide counselling and treatment planning, not define fertility in absolute terms.

Natural menopause occurs most often in the late 40s to early 50s, but fertility usually declines years earlier because both egg number and egg quality decrease before periods stop. Anyone concerned about future fertility, especially if they anticipate delaying pregnancy or need medical treatment that may affect the ovaries, can discuss reproductive planning and egg freezing with a qualified fertility specialist.

Is it normal to have 17 eggs retrieved in IVF?

Yes. Having 17 eggs retrieved in IVF can be a normal and often favourable response to stimulation, particularly for a younger person or someone with a higher ovarian reserve. It does not guarantee that 17 embryos will result, because some eggs may be immature and others may not fertilise or continue developing in the laboratory.

A result of 17 eggs should be interpreted alongside the number of mature eggs, fertilisation results, embryo development and the person’s health after retrieval. The clinical team will also consider whether the ovaries were enlarged, whether symptoms of hyperstimulation are present, and whether a fresh embryo transfer or embryo freezing is the safest plan.

After retrieval, mild cramping, spotting and abdominal fullness can occur for a short time. Contact the fertility clinic promptly if symptoms become significant or worsen, especially with rapidly increasing abdominal swelling, severe pain, persistent vomiting, shortness of breath, dizziness or much less urine than usual.

Is 7 eggs retrieved for IVF good?

Seven eggs retrieved for IVF can be a good and worthwhile result. It may be close to the expected response for some people, particularly those in their late 30s or 40s, those with a lower AMH level, or those who have had a modest response in a previous cycle. The value of the result depends more on how many eggs are mature and how they progress than on whether the number reaches a particular target.

For example, a retrieval of seven eggs may lead to several mature eggs, one or more normally fertilised embryos and possibly an embryo available for transfer or freezing. However, outcomes differ widely, and it is also possible for a higher retrieval count to yield few usable embryos. The laboratory report and follow-up consultation provide a clearer picture than the egg count alone.

If seven eggs were retrieved and the outcome was lower than hoped, a clinician may review the stimulation protocol, timing, sperm factors, fertilisation method and embryo development. In some circumstances, another cycle, IVF treatment planning adjustments, or embryo testing discussions may be considered based on medical history and individual goals.

How clinicians use retrieval results to plan the next step

Egg retrieval is only one stage of IVF. During treatment, ultrasound scans and blood tests help the team monitor follicle growth and adapt medication safely. At retrieval, the eggs are collected under sedation or anaesthesia through the vagina using ultrasound guidance. The embryology laboratory then assesses maturity and follows fertilisation and embryo development.

After the cycle, a fertility specialist reviews the complete outcome: number of follicles, eggs retrieved, mature eggs, fertilisation rate, embryo quality, blastocyst development and any embryos frozen or transferred. This review may identify whether the ovarian response was lower, expected or higher than anticipated. It can also help decide whether the same approach remains suitable for another cycle.

Embryo transfer timing is individual. A fresh transfer may be appropriate for some patients, while freezing embryos for a later cycle may be recommended for medical, hormonal or practical reasons. Where there is a concern about inherited conditions or chromosome-related risks, the care team may discuss whether genetic testing of embryos is relevant; it is not necessary or suitable for every patient.

When to seek medical care

Anyone who has been trying to conceive for 12 months without pregnancy should consider a fertility evaluation if they are under 35. An assessment is often recommended after 6 months for those aged 35 or over, and sooner for those over 40 or for anyone with irregular or absent periods, known endometriosis, previous pelvic surgery, a history of cancer treatment, recurrent pregnancy loss or known sperm concerns.

After IVF egg retrieval, urgent medical advice is important for severe or increasing abdominal pain, rapidly worsening bloating, repeated vomiting, fainting, chest pain, breathing difficulty, fever, heavy bleeding or a noticeable reduction in urine output. These symptoms are uncommon but should not be managed alone.

Acıbadem Health Point’s multidisciplinary fertility specialists and JCI-accredited hospitals assess infertility and provide personalised IVF care for international patients. A consultation can help place AMH results, ultrasound findings and a prior retrieval count into a medically meaningful plan.

Frequently asked questions