It is not recommended to perm hair during breastfeeding because the hair dyes used for perming hair contain certain toxic chemicals, which can be absorbed by the baby through breast milk during breastfeeding. In addition, mothers need to be in close contact with their babies for a long time every day, and these toxic chemicals are also easily absorbed by babies through the skin. The body of infants is relatively fragile if the absorption of toxic substances, easy to their own physical health and development of adverse effects, so it is best not to color hair or perm during breastfeeding, and can not do manicure and so on. If the special needs of the best in the delivery of six months after the perm is more appropriate, and perm also need to choose suitable for maternal use of hair dye and perm agent, to minimize the adverse effects of toxic substances on the baby.