Dementia - Symptoms and causes - Mayo Clinic
Jun 7, 2025 · Overview Dementia describes a group of symptoms affecting memory, thinking and social abilities. The symptoms interfere with a person's daily life. Dementia isn't one specific disease. …
Alzheimer's disease - Symptoms and causes - Mayo Clinic
Nov 8, 2024 · Of the more than 55 million people in the world with dementia, 60% to 70% are estimated to have Alzheimer's disease. Early symptoms of Alzheimer's disease include forgetting recent events …
Frontotemporal dementia - Symptoms and causes - Mayo Clinic
Dec 23, 2025 · Frontotemporal dementia (FTD) is an umbrella term for a group of brain diseases that mainly affect the frontal and temporal lobes of the brain. These areas of the brain are associated with …
Memory loss: When to seek help - Mayo Clinic
Apr 3, 2024 · The word "dementia" is an umbrella term used to describe a set of symptoms. These symptoms include changes in memory, reasoning, judgment, language and other thinking skills.
Vascular cognitive impairment and vascular dementia - Mayo Clinic
Sep 18, 2025 · Vascular dementia (vascular major cognitive impairment, major VCI, VaD). This term describes significant symptoms of dementia that affect daily living. Symptoms may be similar to …
Dementia - Diagnosis and treatment - Mayo Clinic
Jun 7, 2025 · To diagnose the cause of dementia, a healthcare professional must recognize the pattern of loss of skills and function and determine what a person is still able to do.
Alzheimer's stages: How the disease progresses - Mayo Clinic
May 9, 2025 · Dementia is a term used to describe a group of symptoms that affect intellectual and social abilities enough to interfere with daily activity. The five Alzheimer's stages can help you …
Lewy body dementia - Symptoms and causes - Mayo Clinic
People with Lewy body dementia might have changes in thinking that are similar to symptoms of Alzheimer's disease. These symptoms may include confusion, poor attention, visual-spatial problems …
Diagnosing Alzheimer's: How Alzheimer's is diagnosed
Mar 13, 2024 · To diagnose Alzheimer's dementia, healthcare professionals conduct tests to measure memory impairment and other thinking skills. They also judge functional abilities and identify …
Young-onset Alzheimer's: When symptoms begin before age 65
Apr 10, 2024 · Young-onset Alzheimer's disease is a rare form of dementia that presents unique challenges. Learn more about causes, diagnosis and how to cope.