health

Although new mutations of the gene associated with achondroplasia
cannot always be foreseen, people who have the condition should seek
genetic counseling before marriage. If the partner does not have the
mutation, there is a 50 percent chance with each pregnancy that the child
will have achondroplasia. If both spouses have the mutation, they have a
25 percent chance of a normal child with each pregnancy, a 50 percent
chance that the child will have achondroplasia, and a 25 percent chance
that the child will die before or shortly after birth.