What do you have if you suffer from polydactyly?

Explanation

Polydactyly is a congenital physical anomaly in humans, having supernumerary fingers or toes. The term comes from the Greek 'poly', i.e. 'many' and 'dactylos', i.e. finger. It is hereditary but completely harmless, although most people in the West have their extra digits surgically removed. About 2 in 1000 newborns suffer from polydactyly.