IVF Success Rates: What you need to know

by Dimitrios Dovas, last updated 23 Jun 2025,

4 min read

Embarking on the IVF journey is a deeply personal and often emotional experience. As you research clinics and consider your options, one topic likely stands out: IVF success rates. These numbers are usually the first thing people look at, and for a good reason – you want the best possible chance of taking a baby home. But what do these rates mean, and how should you interpret them?

As medical professionals dedicated to helping you achieve your family dreams, we want to demystify IVF success rates and empower you with the knowledge to make informed decisions.

What are IVF success rates, and how are they measured?

At its core, an IVF treatment success rate reflects the likelihood of achieving a desired outcome from an IVF cycle. However, it’s crucial to understand that “success” can be measured differently, significantly impacting the numbers you see.



The most common measures include:

  • Clinical pregnancy rate: This refers to a pregnancy confirmed by an ultrasound, usually showing a gestational sac or fetal heartbeat. While positive and exciting, it doesn’t guarantee a live birth.
  • Live birth rate: This is the most meaningful measure, representing the birth of a baby (or babies in the case of multiples). This “take-home baby” rate provides the most accurate picture of a clinic’s success.

Reputable clinics typically report live birth rates, often broken down by age group. This transparency is key.

Why do IVF success rates matter?

Success rates are not just abstract numbers but a vital indicator of a clinic’s expertise, technology, and overall approach to patient care. Here’s why they matter:

  • Indication of expertise: Higher live birth rates, especially those consistently above national averages, can suggest a highly skilled medical team, experienced embryologists, and state-of-the-art laboratory facilities.
  • Informed decision-making: Understanding these rates allows you to compare clinics more effectively. However, comparing “apples to apples” is crucial – looking at rates for similar age groups and treatment types.
  • Setting realistic expectations: While you hope for success, understanding the statistical probabilities can help manage expectations and prepare you for the journey ahead, which may sometimes involve more than one cycle.

What components make up IVF success rates?

It’s tempting to pick the clinic with the highest overall percentage, but that doesn’t tell your individual story. Many factors contribute to a clinic’s success rates and, more importantly, to your chances of success:

  • Female age: This is arguably the most significant factor. As women age, the quantity and quality of their eggs naturally decline. Clinics typically report success rates in age categories (e.g., under 35, 35-37, 38-40, and over 40) because success rates are significantly higher for younger women.
  • Cause of infertility: The underlying reason (e.g., male factor, tubal factor, endometriosis, unexplained) can influence the treatment approach and, consequently, the success rate. Some conditions are more straightforward to treat than others.
  • Egg and sperm quality: The health of the gametes directly impacts fertilization and embryo development. Advanced techniques like ICSI (Intracytoplasmic Sperm Injection) and sperm selection techniques can significantly improve outcomes, especially in cases of male factor infertility.
  • Embryo quality: Not all embryos develop equally. Embryos are graded based on their stage of development and morphology. Clinics consistently producing high-quality embryos and having sophisticated embryo selection protocols (like time-lapse imaging or PGT-A) often see better implantation rates.
  • Uterine receptivity: The condition of the uterine lining is crucial for implantation. Issues like fibroids, polyps, or endometriosis can affect receptivity, and addressing these before embryo transfer can improve success.
  • Clinic and laboratory expertise: This is paramount. The skill of fertility specialists in designing personalized stimulation protocols, the precision of embryologists in the lab, the quality of the laboratory environment, and the advanced technologies employed (like specific incubators or media) all play a critical role.
  • Number of cycles: Success rates are often cumulative. While one cycle might not result in a live birth, many couples achieve pregnancy after two or three cycles.
  • Lifestyle factors: Healthy lifestyle choices (nutrition, exercise, avoiding smoking and excessive alcohol) for both partners can positively impact fertility and IVF outcomes.

Your journey to parenthood with Newlife IVF Greece

At Newlife IVF Greece, we believe in transparent, individualized care. We understand that behind every statistic is a dream, hope, and unique circumstances. Our success rates are a testament to our dedicated medical team, cutting-edge laboratory, and the personalized approach we take with every patient.

We are proud of our consistently high live birth rates, comparable to top clinics globally, especially considering the diverse range of patients we assist.

Beyond the numbers, we offer a holistic experience. Our clinic in Thessaloniki, Greece, combines world-class medical excellence with affordable costs and no waiting lists, making your fertility journey accessible and less stressful. We focus on providing compassionate support every step of the way, ensuring you feel empowered and informed.

Ready to discuss your unique path to parenthood?

Don’t let statistics overwhelm you. Let us provide you with a personalized assessment and a clear understanding of your chances. Contact us today to schedule your free medical consultation. Your dream of a family is closer than you think.

Dimitrios Dovas

Dimitrios Dovas, MD, DFFP

Dimitrios is the Clinical Director of Newlife Center of Reproductive Medicine, in Thessaloniki Greece.

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