Diagnostic Delay
The gap between the first symptoms and a correct diagnosis.
Definition
Diagnostic delay refers to the often lengthy period between when a person first experiences symptoms and when they finally receive an accurate diagnosis. For rare and autoimmune diseases this delay can span several years. It can allow disease progression and takes an emotional and financial toll on patients.
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Sources & References
This page draws on trusted, authoritative health resources. For medical decisions, always consult a qualified healthcare professional.
- Diagnostic TestsMedlinePlus, U.S. National Library of MedicineGovernment Health Agency
- Improving Diagnosis in Health CareNational Academies of Sciences, Engineering, and MedicinePeer-Reviewed Resource
- 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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