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Alzheimer’s symptoms and diagnosis

Find out about the symptoms of Alzheimer's and how the disease is diagnosed.

Related topics: Alzheimer’s and dementia, Alzheimer’s causes and risk factorsAlzheimer’s treatment, Alzheimer’s caregiving

How Biomarkers Help Diagnose Dementia

Learn about biomarkers — measures of what’s happening in the body — used in dementia detection and research, including brain imaging tests such as MRI and PET.
male medical technician with older woman about to get brain imaging test

How Is Alzheimer's Disease Diagnosed?

Doctors can diagnose "possible Alzheimer's dementia," "probable Alzheimer's dementia," or some other problem causing memory complaints. Learn about the benefits of early diagnosis.
Doctor studying brain scans

An official website of the National Institutes of Health