Hypertension, often called the silent killer, is surging across sub-Saharan Africa as cities expand and diets change. The World Health Organization (WHO) says more than one-third of adults in the region live with high blood pressure. Yet, many do not know they have it until they suffer a heart attack, stroke or kidney failure.

Unlike infectious diseases with obvious symptoms, hypertension can go undetected for years. Rural clinics may be miles away and often lack reliable blood pressure cuffs. Even in cities, routine screenings are rare outside hospitals. Poverty deepens the problem.

Many patients skip checkups because of travel costs or lost wages and medication can be hard to find or too expensive.

Community Health Workers Take the Lead

Governments and aid groups are training community health workers to screen residents where they live. In Kenya and Ghana, mobile teams set up at markets and churches to check blood pressure for free. When they discover hypertension in an individual, health workers give lifestyle advice and connect patients to inexpensive generic drugs.

These programs are low-cost and easy to expand, often costing only a few dollars per patient each year.

Medicine matters, but prevention depends on wider change. Public campaigns urge people to cut salt, eat more fruits and vegetables and exercise regularly. In Tanzania, radio programs and text-message reminders promote healthier cooking and daily walks. Urban planners in Nigeria and South Africa are adding walking paths and parks to make physical activity safer and easier.

Partnerships and Policy Momentum

The WHO’s HEARTS Initiative has been deployed in several low- and middle-income countries to standardize hypertension care protocols and strengthen primary care delivery systems. Similarly, regional bodies such as the Pan African Society of Cardiology (PASCAR) have collaborated with the WHO to produce the “Roadmap to Achieve 25% Hypertension Control in Africa by 2025,” guiding national hypertension policies.

National governments have adopted task-sharing and guideline frameworks under pressure from global advocacy groups. In Africa, the Innovative Epidemiology and a Vibrant Ecosystem (ACHIEVE) strategy outlines 10 strategic actions for integrating hypertension control into health systems policy. Furthermore, donor agencies and international NGOs, including Resolve to Save Lives, support the procurement of affordable medications, provide training and provide technical assistance to governments launching hypertension control programs.

Within Africa, the Centers for Disease Control’s (CDC) strategic plans emphasize strengthening partnerships, workforce development and institutional coordination across member states. These efforts aim to embed noncommunicable disease (NCD) control—including hypertension—into broader health systems.

A Vital Step Toward Stronger Health Systems

Controlling hypertension in sub-Saharan Africa strengthens health services overall. Routine blood pressure checks create chances to spot diabetes and other chronic diseases. Reliable supply chains for hypertension drugs improve access to other essential medicines. By fighting a silent but deadly disease, sub-Saharan Africa can prevent countless premature deaths and build a healthier, more productive population. This shows that tackling chronic illness is as important to development as battling infectious disease.

– Katie Williams

Katie is based in the United Kingdom and focuses on Global Health for The Borgen Project.

Photo: Unsplash