When the pregnancy is not allowed to perm hair, although pregnancy is a normal physiological phenomenon of women, but resistance and immunity is relatively low, if the perm hair perm agent will contain internationally recognized carcinogenic substances dioxin. Through the scalp can enter the body’s blood circulation, which will cause certain harm to the body, may also cause certain harm to the fetus, so in pregnancy is not allowed to perm hair, in addition to dyeing, straightening hair in pregnancy is not feasible. It is recommended that you protect yourself from toxic and harmful gases and objects during pregnancy to avoid the possibility of fetal malformations. It is also advisable not to smoke or drink alcohol, which may cause fetal malformations and have an impact on the growth and development of the fetus. Therefore, during pregnancy, special attention should be paid to both the diet and the details of daily life.