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Symptoms and Diagnosis of Alzheimer's Disease

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


Do Memory Problems Always Mean Alzheimer's Disease?

Learn how to tell the difference between normal age-related memory loss and signs of a more serious problem like mild cognitive impairment or dementia. Sometimes, forgetfulness is caused by a treatable health condition.
Indian couple sitting on a sofa

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

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

An official website of the National Institutes of Health