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Silent Killer: Millions Unaware of High Blood Pressure
28 Sep
Summary
- A study found 37% of adults in England had hypertension.
- Nearly 60% of those with hypertension were previously undiagnosed.
- High blood pressure is a silent killer, damaging organs over time.

A substantial number of adults in England are living with undiagnosed high blood pressure, according to a new study. The research, which analyzed data from approximately 1.4 million adults between 2022 and 2025, found that 37% had hypertension.
Alarmingly, 59% of these individuals were unaware of their condition and not receiving treatment. Hypertension prevalence increases with age, affecting 15% of younger adults and rising to 71% in those aged 80 and over. Men were also found to be more affected than women.
Often referred to as a "silent killer," high blood pressure typically presents no symptoms but can cause gradual damage to blood vessels, the heart, and other organs. Left untreated, it significantly raises the risk of serious conditions, including heart attack, stroke, and kidney disease.
While NHS England has a Community Pharmacy Hypertension Case-Finding Service for those aged 40 and over, many are still missed. Awareness gaps exist, with many unaware of the free checks available or that they can be done without an appointment. Furthermore, the service's age restriction means younger adults with hypertension may remain undiagnosed.
Experts suggest shifting to a culture where blood pressure checks are routine, integrated into everyday healthcare interactions rather than requiring active patient requests. This could include checks during repeat prescription collection, vaccinations, or other health reviews, potentially extending to dental and optometry visits.