Pregnant women are advised not to consume egg-altering food, so as not to cause discomfort or even affect the development of the fetus. Eggs belong to the pickled food, in the process of processing will add soda ash, lime, salt, lead oxide and other ingredients pickled, egg contains a large number of lead and other heavy metal components. Prolonged consumption by pregnant women may lead to excessive lead intake, triggering chronic lead poisoning, pregnant women will suffer from insomnia, anemia, inability to concentrate, slow thinking, etc., and in severe cases, it may also lead to miscarriage, preterm delivery, fetal deformities, etc., so pregnant women are best not to eat changed eggs. It is recommended that pregnant women pay attention to healthy diet, appropriate consumption of food rich in protein and vitamins, while pregnant women should also do a good job of pregnancy checkups and so on.