 [ Symptoms ] is it safe to use nail polish while pregnant [ Disease ] phthalates which are found in many nail polishes have been studied for a potential risk of causing birth defects however evidence does not currently suggest a connection between phthalates and birth defects in humans but studies in animals have shown these substances interfere with male sexual development so caution may be warranted to be on the safe side you can use phthalate free nail polish or polish your nails in a well ventilated area to limit your exposure once the polish dries there is little risk to your baby since chemicals are not absorbed through the nails here is a great article on pregnancy proofing your beauty regimen