Who has Marfan Syndrome?
About 1 in 5,000 people have Marfan Syndrome, including men and women of all races and ethnic groups. About 3 out of 4 people with Marfan Syndrome inherit it, meaning they get the genetic mutation from a parent who has it. But some people with Marfan Syndrome are the first in their family to have it; when this happens it is called a spontaneous mutation. There is a 50 percent chance that a person with Marfan Syndrome will pass along the genetic mutation each time they have a child.
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