Polydactyly is a genetic condition characterized by the presence of extra fingers or toes. It can occur in various forms, with some individuals having additional digits that are fully functional, while others may have small, rudimentary ones. This condition can be inherited in an autosomal dominant pattern, meaning only one copy of the mutated gene from one parent can cause the trait to manifest. Treatment often involves surgical intervention, especially if the extra digits interfere with function or appearance.