Marfan syndrome cannot be prevented. It is more common in children of older fathers. A child has a 50% chance of inheriting Marfan syndrome from an affected parent. However, up to one-third of people with Marfan syndrome are the first ones to have it in their family. Genetic counseling is important for all affected families.
When the diagnosis is made early, steps can be taken to prevent or treat many complications that can occur with the eyes, heart, and spine. However, if Marfan syndrome is not diagnosed, it can lead to problems with the heart that can be life threatening. Also, untreated eye problems can lead to decreased vision or blindness. If the spine is not checked, curvature can occur. A severe curvature of the spine can cause many problems. These can include breathing problems, arthritis, and pain.
Marfan syndrome is not catching. Any family that is affected by the syndrome should have genetic counseling.