The Gauteng Department of Health has raised concern over a growing number of adults under the age of 45 being diagnosed with hypertension, warning that the “silent killer” continues to pose a major public health threat.
Between April 2025 and March 2026, Gauteng recorded 69,125 new hypertension cases, with 26,088 diagnoses among adults aged 18 to 44.
“Hypertension often develops without noticeable symptoms, which is why it is commonly referred to as the ‘silent killer’. Without early detection and proper treatment, it can lead to serious complications including stroke, heart disease, kidney failure and premature death,” the department said.
Health officials say unhealthy diets, obesity, physical inactivity, smoking and excessive alcohol consumption remain among the major contributing factors behind the rise in cases.
As the world marked World Hypertension Day on 17 May under the theme “Controlling Hypertension Together!”, the department stressed the importance of collective action in tackling the condition.
“Many residents are still unaware of their blood pressure status, often resulting in delayed diagnosis and severe complications such as strokes and heart attacks,” the department said.
In a push for early detection, Gauteng screened approximately 8.7 million adults for hypertension during the 2025/26 financial year. Free blood pressure screenings and integrated chronic disease management services continue to be offered at public healthcare facilities across the province.
“We encourage residents to exercise regularly, reduce salt intake, stop smoking, limit alcohol consumption, and go for routine blood pressure screenings. Individuals diagnosed with hypertension must take their medication as prescribed and adhere to their treatment plans,” the department added.