The chance of having more than one child with a cleft lip and/or cleft palate is different for each family. In general, if there is one affected person in the family with a cleft, the likelihood of having a child with a cleft lip and/or palate is 2 to 5 percent. If there is a second affected person in the family (either another sibling or a parent), the chance of future children having a cleft lip increases to 10 to 14 percent, and the risk of a future child having an isolated cleft palate rises to 8 percent.
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