Skip to content
WebMD: Better information. Better health.
 
Other search tools:Symptoms|Doctors|Medical Dictionary

Information and Resources

Font Size
A
A
A

Symptoms of dementia

Dementia is a condition of mental decline that usually comes on slowly over several months. It involves memory, problem-solving and learning abilities, and other mental functions. Little change is noticed day to day, although many people with dementia seem better or worse at different times of the day.

Many health conditions can cause dementia or symptoms similar to dementia. In some cases dementia may be reversible. Alzheimer's disease is the most common cause of dementia in people over age 65.

Early signs of dementia include the following.

  • Behavior changes, such as:
    • A normally tidy person becomes messy
    • A change in previous routines for no obvious reason
    • A decline in language and communication skills
    • Paranoia and suspicions of others
  • Personality changes, such as:
    • Agitation
    • Depression
    • Social withdrawal
    • Unusual behavior
    • Wide mood swings
  • Skill changes, such as an inability to:
    • Balance a checkbook
    • Perform self-care acitivities, such as shaving or putting on makeup
    • Cook a favorite recipe
    • Find previously familiar places
    • Remember times and dates
    • Remember where familiar items are kept

A young person who has symptoms of dementia is more likely to have a psychiatric condition or a substance abuse problem than early dementia.

Over time, mental impairment from dementia will become severe enough to interfere with daily living activities.

Author Bets Davis, MFA
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Pat Truman, MATC
Primary Medical Reviewer Anne C. Poinier, MD - Internal Medicine
Specialist Medical Reviewer Shelly R. Garone, MD - Palliative Care
Last Updated July 14, 2008

WebMD Medical Reference from Healthwise

Last Updated: July 14, 2008
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

Hot Topics

Health Solutions From Our Sponsors

WebMD Video: Now Playing

Click here to wach video: Michelle Obama’s Nutrition Tips for Moms

First Lady Michelle Obama shares tips on parenting with moms and other audience members in a WebMD Town Hall meeting in Miami, Florida.

Click here to watch video: Michelle Obama’s Nutrition Tips for Moms

Popular Slideshows & Tools on WebMD

puppy eating
What you need to know.
Ra Management Get A Personalized Report
Assess your symptoms.
Xray of foot highlighting gout
Causes, symptoms and treatments.
Concentration Killers Slideshow
What's robbing your focus?
brain scan
Recognizing symptoms.
group beer toast
Do you know your suds?
Diabetic tools
Symptoms, causes, treatments.
thumbnail for fatigue slideshow
Causes, fixes for fatigue.
thumbnail for Brain Food slideshow
Foods that can help you focus.
Hot cup of coffee
The facts about that cup of joe.
Wendy’s Chicken Club
Double-fisted diet wreckers.

Women's Health Newsletter

Find out what women really need.