Deciding whether and when to have genetic testing for CADASIL is an important decision for family members at risk for the disease. You should discuss your questions and concerns about genetic testing with a genetics counselor. Click here To find a genetics counselor in your area,
It is generally not advisable for children who are minors to have genetic testing for CADASIL, particularly if they are not showing symptoms of the disease. There are a number of practical and psychological reasons why this is discouraged, the details of which can be discussed with your physician or a genetics counselor. If your child is an adult, you may wish to talk with him or her about your diagnosis and about the fact that CADASIL is inherited. Your child can then discuss this with his or her own treating physician and make a decision about whether or not to have a detailed neurological evaluation including MRI and genetic testing.