The answer to this question depends on many factors. If a person has a parent with Alzheimer Disease (AD) and no other relatives with AD, the risk for that person to develop AD is around 20% to 25%. Someone with many relatives with AD may have a greater chance to develop Alzheimer Disease. Also, if your parent was found to have a genetic change in PSEN1, PSEN2, or APP that is causing their Alzheimer Disease your risk could be as high as 50%. If you are concerned about your risk and you have a family history of AD, a genetic counselor may be able to help you better understand your risk. Genetic counselors can be found on the National Society of Genetic Counselors website.
Other Questions About Alzheimer disease
- Who else in my family should I test for familial Alzheimer Disease?
- Where do I find other people with Alzheimer Disease?
- What’s my risk to develop Alzheimer Disease if my parent had the disease?
- What is the risk to develop Alzheimer Disease if there is no or limited family history of the disease?
- What is the likelihood that someone has familial Alzheimer Disease?
