By 2050, Cancer Deaths Worldwide Expected to Double Despite Medical Advances

Even with major advances in medicine, some diseases remain out of reach. Life expectancy is increasing, yet certain pathologies are still progressing. This paradox hits researchers hard. Cancer is one of the most prominent examples. Although partially preventable or treatable, it continues to grow. While attention is focused on new technologies or emerging viruses, another threat is growing. Global cancer is projected to cause twice as many deaths in 2050 as it does today.

What the figures tell us: cancer is emerging as a major global health issue

In 2022, cancer affected approximately 20 million people and caused 9.7 million deaths. According to the World Health Organization, one in five people will develop cancer in their lifetime, and one in nine will die from it. Nearly 54 million people are currently living with cancer diagnosed within the previous five years.

The most common cancers remain those of the lung, breast and colon. Lung cancer remains the leading cause of death, partly because of tobacco, which is still very present in Asia. These figures reflect a major health crisis, but they do not show all the developments underway. Cancer no longer affects only the elderly. It is also progressing among young adults, disrupting their work, family life and social relationships.

Global cancer 2050: towards a doubling of deaths, driven by systemic inequalities

Based on thirty years of data, researchers anticipate a sharp increase in diagnoses. The number of annual cases could rise to 30.5 million in 2050, compared to 18.5 million in 2023. Mortality, too, would increase to 18.6 million deaths each year. These estimates come from the work of Vikram Niranjan, public health expert, relayed by ScienceAlert and published in The Lancet.

In 2023, nearly 42% of deaths were linked to preventable causes. Tobacco, alcohol, unbalanced diet, excess weight, pollution or work-related risks were among them. Despite their identification, these factors continue to progress. This is especially observed in emerging countries, where exposure to these risks is increasing.

Projections show that countries with a low human development index will see the incidence of cancer increase by 142% by 2050. In these regions, access to diagnosis and treatment remains limited, which explains a much higher lethality. The WHO points out that in very low-income countries, one in 27 women is diagnosed with breast cancer, but one in 48 dies from it. In comparison, highly developed countries record more cases (one in 12), but far fewer deaths (one in 71).

At what cost to save lives? Screening, access, regulation: urgent political choices

Disparities are also widening in care. According to the survey carried out in 115 countries, only 39% of states finance basic cancer care in their national health coverage. Less than a third propose widespread access to palliative care. Radiotherapy remains four times more accessible in rich countries than in developing countries. Stem cell transplantation, for its part, is twelve times more often covered in the health systems of developed countries.

However, effective solutions are already known. Expanded screening, the fight against tobacco and the reduction of pollution are among the priorities. Eating better and breathing better also remains essential to slow progression. The issue goes well beyond care. It also concerns political choices, collective health management and international cooperation.

The next twenty-five years will be decisive for global health. Cancer does not only reflect a biological drift. It also reveals a collective failure to build fairer healthcare systems. The solutions are there, but their implementation still depends on political will. It is now up to States to act in the face of this global challenge.