A new study finds that smoking during pregnancy may raise the risk of having a baby with extra, missing or webbed fingers and toes. The more the mother smokes, the higher the risk.

It’s estimated that about 1 in 600 infants are born with an extra finger or toe — an anomaly known as polydactyly. Webbed fingers or toes, called syndactyly, are less common, occurring in one in every 2,000 to 2,500 births. Adactyly refers to the absence of fingers or toes.

Read (Reuters)