Genetic Testing and Pregnancy
Inherited genetic diseases cannot be cured, but they can be prevented. Carrier screening is a simple blood or saliva test that will reveal whether you or your partner carry gene abnormalities that could cause disease in your offspring.
Most genetic disorders affecting children are recessive, meaning they develop only when two copies of a defective gene are inherited. Parents who have a single copy of a recessive mutation are carriers and are in most cases unaffected by the disease. However, parents who are both carriers for the same condition can pass that condition on to their child if the child inherits an abnormal gene from each of them.
Genetic diseases are often fatal or severely debilitating. Because carriers usually have no symptoms, screening is the only way to know your risk of having an affected child.