Some conditions do not resolve; they must be managed for years. A chronic disease is a health condition that persists for a long time, often defined as three months or more, or that recurs frequently over a lifetime.

Examples include diabetes, hypertension, asthma, arthritis, and many heart conditions. Management focuses on controlling symptoms, slowing progression, preventing complications, and preserving function. Lifestyle measures, long-term medication, monitoring, and patient education form the core of care.

Chronic diseases account for a large share of healthcare use and disability. Multidisciplinary teams and self-management support improve outcomes. Acute exacerbations still occur and require prompt treatment, but the overall strategy is continuous rather than curative.

• Long-lasting or frequently recurring health condition
• Requires ongoing management rather than one-time cure
• Includes diabetes, hypertension, asthma, and arthritis
• Emphasizes control, prevention of complications, and function