The main reason why the skin becomes better in the early stages of pregnancy is because of the large increase in estrogen in the body, which makes the skin more delicate, elastic and shiny, and it is mainly due to the action of estrogen that the skin becomes better. However, due to individual differences, some people will have pigmentation after pregnancy because they do not have better sun protection, such as facial pigmentation, which disappears very slowly after giving birth to a child, or even some people do not disappear. If women have pigmentation after giving birth, it is recommended to take more vitamin C, which has whitening effect. In addition, it is recommended to go to the hospital for regular maternity checkups after pregnancy, as only through maternity checkups can we know whether the embryo is developing normally.