Watch a video that discusses the types of dementia and the importance of diagnosis (1 minute 45 seconds long).
Alzheimer’s disease is the most common type of dementia, but there are a number of other types. Each type of dementia has a different cause and affects people in different ways. It may be difficult to tell which type of dementia a person has because they all have some symptoms in common; a thorough doctor’s examination is needed to make a correct diagnosis.
Below, the most common types of dementia are listed in order of how common they are. All are progressive dementia (get worse over time) and tend to be seen most often in older age groups. It is possible to have more than one of these types of dementia at the same time.
The following forms of dementia are less common and vary as to the age of onset:
Source: Alzheimer's Australia
Description: This web page categorizes the various types of dementia, and offers links for each type listed with more information.
Source: UCSF: Memory and Aging Center
Description: This webpage includes information on the prevalence of the different forms of dementia in addition to basic information on dementia.
Source: National Institute of Neurological Disorders and Stroke
Description: This web page discusses subtypes of dementia (cortical versus subcortical, primary versus secondary), as well as various forms of dementia, causes, and treatments. It also includes information about past and current research, with links for more information. Secondary dementias and dementias in children are discussed, as are different conditions which can cause dementia. Sections are also offered for causes, risk factors, diagnosis, treatment, prevention, research and care.
Source: The Cleveland Clinic Health System
Description: This webpage gives a brief description of dementia, lists causes of dementia other than Alzheimer's, and discusses cortical versus sub cortical dementia types.