The burden of Prostate Cancer in Africa: Insights from GLOBOCAN 2024 and Projections through 2050

Cancer is a disease of aging, a condition where the body's own cells begin to grow out of control. For men, one of the most common forms of this disease arises in the prostate, a small gland located just below the bladder. While this cancer is often slow-growing and manageable in places with advanced medical systems, its story changes dramatically when it moves across the globe. In many parts of the world, the ability to detect this disease early or treat it effectively is limited. This creates a stark reality: a man might not know he has the disease until it has spread, and even then, the tools to stop it might be out of reach. Understanding where this burden falls, and how it is changing as populations grow and age, is essential for planning the health systems that will serve future generations.

A team of researchers from the University of Nairobi has taken a fresh look at this challenge across the entire African continent. Using the most recent global estimates available for the year 2024, they mapped out the current landscape of prostate cancer in all 54 African nations. They did not just count the cases; they also looked ahead, using demographic models to project what the situation will look like in 2050. Their work reveals a continent facing a dual crisis: a disease that is already the leading cause of cancer death among men, and a future where the number of cases is expected to more than double.

The picture that emerges from 2024 is one of deep inequality. Across Africa, prostate cancer was responsible for an estimated 111,450 new cases and 61,755 deaths. This made it the most commonly diagnosed cancer among men on the continent, accounting for more than one-fifth of all new cancer cases. It was also the leading cause of cancer death, responsible for nearly one-fifth of all cancer fatalities. However, the numbers tell a troubling story about the quality of care. In Africa, the ratio of deaths to new cases is roughly 55 percent. This means that for every two men diagnosed, more than one will die from the disease. In contrast, the global average for this ratio is only about 27 percent. This gap suggests that while the disease is being found, the systems to treat it are often failing to save lives.

The burden is not shared equally across the continent. Southern Africa recorded the highest rates of new cases, while Western Africa saw the highest rates of death. At the country level, the disparities are even more pronounced. Zimbabwe recorded the highest rate of new cases and the highest rate of deaths, followed closely by Chad. In these nations, the disease strikes with particular ferocity. Meanwhile, Northern Africa consistently recorded the lowest rates for both incidence and death. The researchers found that while some countries like Nigeria have the highest total number of cases simply because they have large populations, the risk for an individual man is highest in countries like Zimbabwe and Chad.

Looking toward the future, the study projects a sharp rise in the disease burden. By 2050, the number of new cases and deaths is expected to more than double across the continent. This surge is not driven by a sudden change in the biology of the disease or a new environmental trigger. Instead, it is a result of the changing face of Africa's population. As the continent grows and more men live into older age, the number of people at risk increases. The researchers used a model that assumes the risk of developing the disease remains constant, applying it to projected population growth. Under this scenario, Eastern Africa is expected to see the largest relative increase in both new cases and deaths, with numbers rising by nearly 184 percent. Zambia, in particular, is projected to see a massive jump, with cases expected to more than triple.

The study also highlights the limitations of the data itself. In many African countries, cancer registries are incomplete or non-existent. The numbers used in this analysis are often estimates derived from statistical models that fill in the gaps where direct data is missing. This means the true burden could be even higher than reported, as many cases likely go undiagnosed and unrecorded. The projections for 2050 are based on the assumption that current trends in diagnosis and treatment will continue. If the availability of screening and treatment does not improve, the rising tide of cases will meet a static wall of medical capacity.

The authors conclude that the current trajectory is unsustainable. The high death rate relative to the number of cases points to a system where men are diagnosed too late or cannot access curative treatments like radiation therapy. To prevent a future wave of unnecessary deaths, the researchers argue for urgent investment in the continent's health infrastructure. This includes training more oncology specialists, expanding access to radiotherapy, and implementing screening programs that are tailored to local needs. Without these steps, the growing population will face a disease that is already the leading killer of African men, and the gap between diagnosis and survival will only widen.