Inflammation
The immune system's protective response to injury or infection.
Definition
Inflammation is the immune system's natural response to injury, infection, or irritation, and it normally helps the body heal. When inflammation becomes chronic, however, it can contribute to autoimmune and other diseases. Recognizing the difference between helpful and harmful inflammation is key to many treatments.
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Sources & References
This page draws on trusted, authoritative health resources. For medical decisions, always consult a qualified healthcare professional.
- Patient Engagement & Hormone HealthEndocrine SocietyProfessional Medical Society
- Health InformationNational Institutes of Health (NIH)Government Health Agency
- Health Topics: Trusted Consumer Health InformationMedlinePlus, U.S. National Library of MedicineGovernment Health Agency
- Health Topics A-ZMedlinePlus, U.S. National Library of MedicineGovernment Health Agency
- Health Library: Diseases & ConditionsCleveland ClinicAcademic Medical Center
Content Review
- Last Reviewed
- July 2026
- Last Updated
- July 2026
- Content Type
- Educational Documentary Companion
- Evidence Standard
- Evidence-Informed
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