Polydactyly is a problem in which a person has more than 5 fingers per hand or 5 toes per foot. There might not be any other symptoms or disease present. Polydactyly may be given in families. This trait entails only one genetics that can cause a number of variations. African Americans, more than other ethnic groups, can acquire a 6th finger. Polydactyly can also occur with some genetic diseases. Just connecting a tight string around the stalk can cause it to drop off in time if there are no bones in the figure. Asphyxiating thoracic dystrophy; Carpenter disorder; Ellis-van Creveld disorder; Familial polydactyly; Laurence-Moon-Biedl syndrome; Rubinstein-Taybi disorder; Smith-Lemli-Opitz syndrome; Trisomy 13;.
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