Patient's question:
NoDoctor's answer:
During pregnancy, it is best to avoid hair pulling, perming, and dyeing. Since most perms contain toxic heavy metals, such as mercury, lead, etc., they can be easily absorbed by the scalp and enter the bloodstream. The fetus relies on absorbing nutrients from the mother's blood to maintain normal growth. Therefore, toxic heavy metals can also be absorbed by the fetus through the bloodstream, which may have a certain impact on the development of the fetus.