HP_0001830 (Postaxial foot polydactyly) can be described as follows. Polydactyly of the foot most commonly refers to the presence of six toes on one foot. Postaxial polydactyly affects the lateral ray and the duplication may range from a well-formed articulated digit to a rudimentary digit. Also known as: Extra toe attached near the little toe, Polydactyly affecting the 5th toe, Postaxial polydactyly of feet, Postaxial polydactyly of foot, Posterior polydactyly of foot.