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Friday, 07 July 2023 13:13

Seasonal Impact on Fertility Treatments: Surrogacy and IVF Considerations

Have you ever wondered if the success of fertility treatments like in vitro fertilization (IVF) and surrogacy could be influenced by the season of the year? A recent study from Australia suggests that the sunny summer season might be the best time to collect eggs for these treatments. This fascinating discovery opens up a new dimension in the field of fertility treatments, shedding light on the potential role of environmental factors in their success.

 The Power of Summer in Fertility Treatments

 The study, published in Human Reproduction, analyzed outcomes from frozen embryo transfers over an eight-year period. The researchers found that if the egg had been collected in summer rather than fall, the chances of having a successful embryo transfer and live birth were 30 per cent higher, regardless of when the embryo was implanted in the womb.

 IVF is a process that involves removing eggs from ovaries and fertilizing them with sperm in a laboratory before being implanted in the womb. It's one of the most successful, albeit expensive, fertility treatments available. This process is often used in surrogacy, where a surrogate mother carries a child for someone else.

 Interestingly, the study found that the temperature on the day of egg collection did not affect the chances of successful fertility treatment. However, the chances of live birth rate decreased by 18 per cent when the embryos were transferred on the hottest days compared to the coolest days.

 The Role of Melatonin in Fertility

 So, why might summer be a better season for egg retrieval? One theory involves melatonin, the sleep hormone that helps with circadian rhythm and also has antioxidant qualities. Melatonin levels are much higher during winter, and this exposure in the months before removal may impact the development competence of the egg.

 While these findings are intriguing, it's important to remember that every individual's journey with fertility treatment is unique. Always talk to your doctor to figure out what's best for your health.

 Key Takeaways 

  • The success of fertility treatments like IVF and surrogacy might be influenced by the season of the year.
  • Eggs collected in summer might have a higher chance of leading to a successful live birth.
  • The hormone melatonin might play a role in egg development and fertility.

Quick Facts 

  • Surrogacy is a process where a woman carries a child for someone else.
  •  IVF is used in surrogacy.
  •  The season of egg collection might impact the success of fertility treatments.
  •  Summer seems to be the most favorable season for egg collection.
  •  Melatonin, a hormone that regulates sleep, might impact egg development. 

Frequently Asked Questions 

Is IVF more successful in winter or summer? - According to the study, eggs collected in summer have a higher chance of leading to a successful live birth.

Can I take melatonin during IVF stimulation? - Melatonin might play a role in egg development, but you should always consult with your healthcare provider before taking any supplements during IVF stimulation.

What is the most IVF attempts before success? - The number of attempts can vary greatly depending on individual circumstances. It's important to discuss this with your healthcare provider.

What is the live birth rate for IVF? - The live birth rate for IVF can vary depending on many factors, including the age of the woman and the quality of the eggs and sperm.

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Under Ukrainian law, surrogacy is a legal affordable option for traditionally married couples to have children using their own embryos, or with either an egg or sperm donor. There must be a medical reason you can’t carry a child. You are also able to participate if you have had 4 unsuccessful IVF attempts.


Under Ukrainian law, surrogacy is a legal affordable option for traditionally married couples to have children using their own embryos, or with either an egg or sperm donor. There must be a medical reason you can’t carry a child. You are also able to participate if you have had 4 unsuccessful IVF attempts.