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Why some babies are born with 6 fingers: Understanding polydactyly and when treatment is needed

Polydactyly, the presence of an extra finger, is a common and often harmless congenital condition resulting from minor genetic signaling changes during fetal development. While it can be inherited or occur spontaneously, most cases are isolated and do not impact hand function. Treatment, typically surgical removal, is considered based on the digit's structure and potential interference with movement.