Flow Fertility

15/10/2025

Important update

I am sorry if you have been affected by IVF Australia’s attempted termination of my engagement with immediate effect on 10 October 2025, which means I am unable to honour appointments that were scheduled. I understand this creates significant disruption, especially for patients mid-treatment or with upcoming appointments.

I am working through the details of my future practice arrangements and will provide updates as soon as I am able to. I sincerely apologise for any distress this has caused. The situation was not of my choosing, and patient care remains my highest priority.

Dr Gavin Sacks

08/10/2025

Every fertility journey is unique – filled with excitement, uncertainty and important crossroads.

One step you may not have expected is seeking the advice of a fertility specialist. Knowing when to take that step can be a big and even daunting decision.

Your GP should be your first port of call – they can guide you and provide you with a referral to a fertility specialist.

From there, Flow Fertility will be by your side on your journey, supporting you with a range of fertility tests and treatments.

💬 Talk to your GP today if you might benefit from specialist support.

17/09/2025

Each person approaches fertility care differently. For some, exploring holistic approaches, such as acupuncture, can support their personal journey.

I help my patients to find the care that’s right for them, working alongside acupuncturists that specialise in IVF and pregnancy support.

Want to find out more?
Join me along with acupuncturists and other care professionals to discuss complementary care during IVF. Event details coming soon!

10/09/2025

Curious about the science behind natural killer (NK) cell testing for fertility?

Uterine NK cells are immune cells in the uterus, supporting embryo implantation and placental development. Too many or too few can disrupt pregnancy, causing miscarriages and unexplained infertility.

While traditional uterine NK cell testing uses invasive uterus biopsies, I offer my patients cutting-edge NK cell blood testing at Flow Fertility.

NK cell activity in the blood is closely linked to NK cell activity in the uterus. Therefore, a simple blood test can provide vital reproductive information to guide your fertility treatment and better support your pregnancy.

05/09/2025

It’s Women’s Health Week in Australia, marking a time for all women to prioritise their health and wellbeing.

Today’s Women’s Health Week theme of ‘Be kind to your mind’ is important to keep front of mind at every stage during your fertility journey. Remember to take time to care for your mental health as well as your physical health.

Research has shown that stress can negatively impact IVF treatment, with egg retrieval being the most affected stage in the process. Any fertility journey comes with ups and downs, and infertility has been linked to high rates of depressive and anxiety disorders for women. Despite this, very few women seek professional mental health support.

Please join me in spreading awareness of . Find time this week to practise self-care and share any mental health concerns with your doctor.


References:
Zanettoullis AT, et al. Int J Mol Sci. 2024;25(2):726. doi: 10.3390/ijms25020726.
Becker MA, et al. Am J Psychiatry. 2019;176(9):675-766. doi.org/10.1176/appi.ajp.2019.176702.

03/09/2025

Fertility treatment, miscarriages, unexplained infertility and the longing to grow a family – these can all trigger big emotions.

Despite tests and increasing care options, there is still uncertainty in reproduction. I advise you to be brave in the uncertainty, as this uncertainty is what makes creating a human life a unique and beautiful thing.

Embrace the ebbs and flows of your fertility journey.

27/08/2025

Too often I see patients frustrated and distressed over ongoing struggles conceiving and the dreaded diagnosis – unexplained infertility.

This is not the end of the line.

There are many treatment options available to help you grow your family – and this is something I can help with at Flow Fertility.

A big thank you to IVFAustralia who originally produced this video.

20/08/2025

While IVF and IVM are both forms of fertility treatment, there are some key differences between the two…

🌊IVF – Following hormone treatment, mature eggs are retrieved from a woman’s ovaries and are fertilised with s***m in a lab, with the resulting embryos transferred into the uterus.
🌊IVM – Immature eggs are retrieved from the ovaries, matured in a lab, fertilised with s***m to create embryos and then transferred into the uterus.

IVM is one of the latest breakthrough innovations in fertility medicine, with the potential to minimise the toll that fertility treatment takes on women. It’s an area of research I am actively involved in and I look forward to sharing more insights and science with you in the future.

Let’s redefine what’s possible in reproductive medicine.

Reference:
Xu Y, Qiao J. Comparison of in vitro maturation and in vitro fertilization for polycystic o***y syndrome patients: a systematic review and meta-analysis. Ann Transl Med. 2021;9(15):1235. doi: 10.21037/atm-21-3037.

13/08/2025

Good clinical research is the cornerstone of continued improvements in fertility care.

I’m delighted to share the findings of one of the recent projects I was involved in that integrates AI into s***m sample analysis. Swipe through the slides for the findings.

*azoos***mic – the absence of s***matozoa in centrifuged semen on at least two occasions; the most severe form of male infertility
**s***matozoa – also known as s***m

Reference:
Goss DM, Vasilescu SA, Vasilescu PA, Cooke S, Kim SH, Sacks GP et al. Evaluation of an artificial intelligence-facilitated s***m detection tool in azoos***mic samples for use in ICSI. Reprod Biomed Online. 2024;49(1):103910. doi: 10.1016/j.rbmo.2024.103910.

05/08/2025

Big Miracles didn't quite get the gong at the Logies on Sunday, but I'm very proud that it was nominated nonetheless.

It was a privilege collaborating with IVFAustralia and Channel 9 on this series that shines a light on the hope, heartache and triumphs of fertility journeys.

If you missed it at the time, you can watch Big Miracles Season 3 on 9Now.

Australia's most inspiring journey of hope returns. Join us on these beautiful stories on a new season of Big Miracles.

31/07/2025

On Tuesday 5 August, IVF Australia is hosting a free egg freezing information night in Bondi.

I will be speaking alongside Dr Raewyn Teirney and Dr Shadi Khashaba on everything you need to know about egg freezing.

This event offers a perfect opportunity to have your questions answered and find out whether egg freezing could be the right choice for you.

To register, visit https://loom.ly/DCqMXkA

24/07/2025

Today I'm celebrating the amazing work of our embryologists, who I collaborate with closely every day.

The work we do together is a continuation of how it all started over 47 years ago, with the somewhat serendipitous discovery of IVF by a collaboration between pioneering British scientists and clinicians. You can watch their story in the Netflix drama 'Joy – The Birth of IVF'.

When I applied to be a medical student in the 1980s, there was a lot of news about the future of IVF but it was still a nascent field at that time. I was fascinated by its potential, which is what ultimately led to my career as a fertility specialist.

Inspired by the power of collaboration that resulted in the discovery of IVF, I continue to work together with people from fields as diverse as genetics and bioengineering. I remain a firm believer in the positive advances that can be made when different disciplines work together to push the boundaries of what's possible in fertility care.