Preaxial<unk>  The condition has an estimated occurrence of 0.3–3.6 per 1000 live births. Postaxial hand<unk>  is most frequent in the United States in Black males. Preaxial<unk>  occurs in 0.08 to 1.4 in 1,000 live births. In the United States, it is more common in White people and also relatively frequent in Native American and Asian people. A 1994 study by Finley et al. combined data from Jefferson County, Alabama, United States, and Uppsala County, Sweden. This study found incidence of all types of<unk>  at rates of 2.3 per 1000 live births of White males, 0.6 per 1000 live births of White females, 13.5 per 1000 live births of Black males, and 11.1 per 1000 live births of Black females.
Polydactyly
Clinodactyly
Oligodactyly
Syndactyly
Brachydactyly
Sclerodactyly
Pachydermodactyly
Arachnodactyly