There are no known ways to prevent senile cerebral amyloid angiopathy.
A person with senile cerebral amyloid angiopathy usually has repeated episodes of bleeding into the brain over a period of months or years. Each episode of bleeding carries a risk of death or permanent brain damage. After each episode of bleeding, a person usually becomes more and more disabled. The person may become totally dependent on others for his or her basic needs. Death will eventually occur.
Senile cerebral amyloid angiopathy is not known to be contagious or inherited.