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For the first time, more than one million people in the Netherlands are living with the lasting consequences of a cancer diagnosis. While cancer is often framed as a disease of old age, a significant and growing portion of this population consists of those diagnosed during their most formative years. Nearly 70,000 of these individuals were diagnosed as young adults, between the ages of 18 and 39.
This specific demographic, known clinically as Adolescents and Young Adults (AYAs), faces a unique set of challenges that differ sharply from those of older patients. For an AYA, the battle is not only against the malignancy itself but against the disruption of critical life milestones. The gevolgen van kanker bij jongvolwassenen often extend far beyond the clinical resolution of the disease, manifesting as permanent shifts in fertility, financial stability, and psychological well-being.
To bring these invisible struggles into the public eye, the Integraal Kankercentrum Nederland (IKNL), the AYA Zorgnetwerk, and the AYA Fonds have launched AYA Awareness Week. The initiative aims to highlight the necessity of age-specific care for a group that often feels lost in a healthcare system designed for children or the elderly.
The survival paradox: Why numbers are rising
Recent data indicates a notable increase in the number of young adults living with and after cancer. As of January 1, 2025, approximately 69,000 people in the Netherlands were living with the effects of a diagnosis received between ages 18 and 39. This represents a 33 percent increase from 2009, when the number stood at 51,000.
Medical experts explain that this rise is a “survival paradox.” The increase is driven largely by significant improvements in medical outcomes rather than a massive surge in new cases. The average five-year survival rate for this group has climbed to 90 percent, a substantial jump from 78 percent two decades ago.
However, as Henrike Karim-Kos, a researcher at IKNL, notes, surviving the initial diagnosis is only the first step. She emphasizes that nearly 7 percent of all cancer survivors in the Netherlands were diagnosed as young adults, stating: “Overleven betekent niet dat je er geen gevolgen van ondervindt” (Surviving does not mean you do not experience the consequences).
| Metric | 2009 | 2025 |
|---|---|---|
| Number of AYA Survivors | 51,000 | 69,000 |
| Annual New Diagnoses | 4,200 | 4,600 |
| 5-Year Survival Rate | 78% | 90% |
Distinct clinical profiles and data nuances
Cancer distribution among young adults differs significantly from the general population. In this age bracket, certain malignancies appear with much higher frequency. For men, testicular cancer is the most prevalent, accounting for 36 percent of cases. For women, breast cancer is the most common, representing 30 percent of diagnoses.
Other relatively frequent occurrences in the AYA group include skin melanoma and tumors of the central nervous system. To maintain the integrity of these statistics, the Netherlands Cancer Registry (NKR) excludes basal cell carcinoma (BCC) and ductal carcinoma in situ (DCIS), as these often have different clinical trajectories. This proves also noted that the inclusion of low-grade brain tumors in registration since 2001 has contributed to the observed increase in survivor numbers.
Beyond the clinic: The psychosocial toll
From a medical perspective, the “cure” is often measured by the absence of disease. However, for a 25-year-old, the treatment itself can create new, lifelong disabilities. The disruption of the reproductive system is one of the most profound impacts, leaving many AYA survivors to face complex fertility struggles just as they are considering starting families.
The impact extends into the socio-economic sphere. A diagnosis during the years of study and early career entry often leads to diminished income and interrupted professional development. This creates a cumulative disadvantage that can persist for decades.
Suzanne Kaal, an internist-oncologist at Radboudumc and board member of the AYA Zorgnetwerk, argues that the standard medical model is insufficient for this group. She highlights that young adults have unique physical, psychological, and social needs. When the ability to achieve milestones—such as finishing a degree or maintaining a romantic relationship—becomes uncertain, the psychological burden intensifies.
The shift toward tailored AYA care
Because the needs of a 20-year-old differ so fundamentally from those of a 60-year-old, the AYA Zorgnetwerk has focused on implementing age-specific guidance. This approach integrates medical treatment with support for mental health, study, and function reintegration.
Simone van Vegten, a program manager at the AYA Fonds and a survivor herself, advocates for a holistic view of recovery. She suggests that care must move beyond the biological treatment of the tumor to address the “whole person.” According to van Vegten, the goal is to ensure that AYAs experience seen and supported in every aspect of their lives, a mission that requires dedicated financial support and specialized staffing.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Patients should consult with their healthcare provider for personalized treatment plans and support.
As AYA Awareness Week continues, the focus remains on integrating these specialized support systems into the broader national healthcare strategy. The next step for advocates and researchers is the continued refinement of the Netherlands Cancer Registry data to better tailor long-term follow-up care for the growing population of young survivors.
We invite you to share your thoughts or experiences with AYA care in the comments below to facilitate increase visibility for this community.
