Top Factors Affecting Success Rate of In Vitro Fertilization (IVF)


Potential factors influencing a successful IVF

Infertility and childlessness can be traumatic for couples struggling to conceive naturally. IVF has been a boon to many couples wishing to have children. The IVF procedure is influenced by factors that can determine its success rates. Some of the major factors that need to be considered are mentioned below.

  • Age : Age is considered as one of the crucial determining factors of IVF success rate. As women get older, there can be a deterioration in the quality and quantity of eggs and hence, the IVF success probabilities may decline. If we get into the statistical data, the chances of a successful pregnancy increase in women below 35 years of age; accounting for almost 40% globally. While the pregnancy success rate in women older than 40 years decreases to around 4%.
  • Infertility condition : It is observed that certain fertility concerns can enhance the complications and difficulties of a successful IVF pregnancy. The presence of dual ovaries, uterine deformities, fibroids, ovulatory disorders are some of the pregnancy hindrances in women.
  • Sperm Quality : In men, poor sperm morphology, low sperm quality, and motility can hamper successful pregnancy chances.
  • Egg and Embryo quality : Scientists believe that almost 95% of the embryo quality is dependent on egg quality. Good quality eggs can help obtain high-quality embryos and in turn, can improve the chances of a fruitful pregnancy. The fertility issues like dual ovaries, uterine abnormalities, and fibroid tumors increase the difficulties for the women to conceive again.
  • Lifestyle habits : Lifestyle indulgences such as smoking cigarettes, alcohol abuse, a poor diet can interfere with the IVF success chances. It is advised to stop such habits at least 3 months before an IVF treatment.
  • Fertility center : Below are the factors relating to the fertility center that can add to the IVF success rates:
    1. Clinic’s experience and the number of IVF cycles performed.
    2. The success rate of the clinic with the number of live births achieved.
    3. Experience and skill of the IVF doctor to handle complex infertility cases.
    4. Extensive laboratories and infrastructure of the fertility center.
  • IVF stages : Every stage of IVF from ovary stimulation to embryo transfer needs meticulous vigilance and management. Monitoring the hormonal interventions during ovary stimulation, selection of viable gametes, embryos, and careful transfer of the embryos are aspects that can regulate IVF success possibilities.

OMYA Infertility Treatment has one of the finest teams of experienced dieticians, embryologists, and IVF specialists who are known for their impeccable handling of various infertility complications. This is a place where science meets care and you have all the IVF techniques under one roof. Connect with the fertility specialist at OMYA to have a successful possibility of a fruitful pregnancy.


IVF success factors include age, ovarian reserve, sperm quality, uterine health, previous pregnancy history, and lifestyle factors like smoking, alcohol, and obesity can reduce the IVF success rate. Thus Maintaining a healthy lifestyle and seeking fertility guidance based on individual circumstances is crucial for increasing the chances of success.

While several IVF success factors contribute to the outcome, the most critical one is a woman's age. Age has a direct impact on the quality and quantity of a woman's eggs. Younger women generally have healthier eggs with a higher potential for successful fertilization and embryo development. As women age, the quality of their eggs decreases, leading to lower chances of successful IVF outcomes. 

Therefore, women need to consider their age and consult with their fertility specialists to understand the potential impact of this and other IVF success factors on their chances of success.

The biggest hurdles in IVF include emotional and psychological stress, the financial burden of treatment costs, physical side effects from medications and procedures, the need for multiple treatment cycles, and the possibility of medical complications. The emotional strain, financial challenges, physical discomfort, and uncertainties surrounding success can make the IVF journey difficult for individuals and couples. It is important to have support systems in place and work closely with healthcare professionals to navigate these hurdles and increase the chances of a successful outcome.

IVF success rates can vary due to various factors affecting IVF success rate. Age-related factors, such as decreased egg quality and quantity, contribute to lower success rates. Variations in ovarian response, embryo quality, underlying health conditions, and lifestyle factors like smoking, alcohol, and obesity also impact success rates. It's important to note that IVF does not guarantee success in every attempt. Understanding the factors affecting IVF success rate can help individuals make informed decisions and manage expectations during their fertility journey.

Secondary infertility refers to the inability to conceive or carry a pregnancy to term after previously giving birth to a child. The success rate of IVF for secondary infertility depends on various factors, including the age of the woman, the quality of eggs and sperm, any underlying medical conditions, and previous fertility history. Generally, the success rates for IVF in cases of secondary infertility are comparable to those for primary infertility.

In cases of male factor infertility, where the male partner has issues with sperm quality, IVF can be an effective treatment option. By using techniques such as intracytoplasmic sperm injection (ICSI), where a single sperm is directly injected into the egg, the chances of successful fertilization can be improved. IVF combined with ICSI has been successful in overcoming male factor infertility and achieving pregnancy. However, the overall success depends on various factors such as the severity of the male factor infertility, the quality of the female partner's eggs, and any other underlying fertility issues.

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