Why ovarian cancer exposes where health systems fail women

I’ve spent time reflecting on this year’s theme for World Ovarian Cancer Day, a global awareness campaign led by World Ovarian Cancer Coalition – No Woman Left Behind – and on just how much weight those four words carry.

Too often, women have been left behind — not through individual failings, but because health systems have not been designed with women’s experiences at their centre. In ovarian cancer, this has contributed to slower improvements in survival than seen in many other cancers, ongoing late‑stage diagnosis, and delays linked to the non‑specific nature of symptoms.

Ovarian cancer is, in many ways, a stark test of whether health systems truly work for women.

It remains one of the most lethal cancers affecting women globally yet compared with other cancers it has attracted far less investment, innovation and urgency. There is still no reliable early detection test. Treatment options remain limited. And too many women navigate an overwhelming experience without the support they need.

The World Ovarian Cancer Coalition (WOCC) Every Woman Study™ – the largest global study of women’s experiences of ovarian cancer – makes this painfully clear. It shows that most women experience symptoms and actively seek help, yet face long and variable delays to diagnosis after entering the health system. Late diagnosis is not a failure of awareness alone, it is a systems failure.

An Australian perspective, with global implications

In Australia, a country with a well-resourced health system, women with ovarian cancer still face unacceptably poor outcomes. National data from Cancer Australia, based on analyses by the Australian Institute of Health and Welfare (AIHW), shows that fewer than half of women diagnosed with ovarian cancer will survive five years beyond diagnosis. Clinical evidence consistently indicates that recurrence is common, particularly for women diagnosed at an advanced stage. Looking ahead, projections indicate that the number of women diagnosed with ovarian cancer is Australia will rise over the coming decades, driven largely by population ageing and growth.  

Australia should be doing better – and in many areas it does – but our experience is instructive. If outcomes remain so challenging here, the consequences in under-resourced and fragile health systems are even more sobering.

 According to the WOCC report, 70% of ovarian cancer cases occur in women in low- and middle-income countries, where access to timely diagnosis, specialist treatment and support can be severely constrained. The WOCC evidence shows these gaps are widening, not closing.

Further evidence from the WOCC’s Socioeconomic Burden of Ovarian Cancer study, undertaken with RTI International and the World Health Organization, shows that while ovarian cancer places significant pressure on health‑care systems, these costs represent only a small share of the true burden. The overwhelming impact is economic and social, driven largely by women’s lives cut short and the loss of their contribution to families, communities and economies.

Awareness matters, but it is not enough

World Ovarian Cancer Day plays a vital role. It raises visibility, helps women recognise symptoms, and signals to decision-makers that this disease can no longer be overlooked. But awareness alone does not save lives.

The Every Woman Study™ shows that even when women seek help, systems often respond too slowly. Delays in referral, lack of specialist pathways, and fragmented care all reduce women’s chances of surviving – or surviving well. Awareness must be matched with systems that listen to women, act early, and deliver coordinated, specialist care.

This is as true in Australia as it is elsewhere.

What gives me hope is that the global conversation is shifting. There is growing recognition that women’s health has been systematically under-prioritised, and that this must change.

But recognition is only the beginning. Real change requires sustained commitment: investment in research that reflects women’s lived experience; health systems that work together rather than in silos; and care models that address not only clinical treatment, but the emotional and psychological toll of ovarian cancer.

Support is not an optional extra, it is essential care. When support is missing, inequity deepens –even when treatment exists.