Secondary Prevention

Secondary prevention is the second level of disease prevention that aims to identify and treat disease in its earliest stages, before symptoms develop or become severe. It bridges the gap between primary prevention, which stops disease from occurring in the first place, and tertiary prevention, which manages the effects of established disease. Secondary prevention relies on screening programs and diagnostic testing to detect disease early, when treatment is typically more effective and less invasive.

Screening and Early Detection

The core tools of secondary prevention are screening tests and diagnostic procedures designed to identify disease before a person experiences symptoms. These include mammograms for breast cancer, colonoscopy for colorectal cancer, blood pressure checks for hypertension, and cholesterol testing for cardiovascular disease. Screening programs are evolving with technological advancements, particularly in artificial-intelligence-driven diagnostics.

Emerging Technologies in Screening

Recent developments highlight the integration of AI into longitudinal health monitoring:

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