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NF is a genetic condition. It is an autosomal dominant inheritance pattern. What that means is if you have the gene you have the condition, if you do not have the gene you do not have the condition. With each pregnancy you have a 50% chance of passing the condition on. If your child does not have NF he/she can not pass it along to their children. Half of the people with NF are a result of a new mutation. No one in their birth family had NF but something along the way went wrong while they were developing in utero.