Due to the special attributes of pregnant women, it is usually recommended to choose topical medication and physical therapy as the main treatment for pigmentation in pregnant women, and then in daily life, usually do not stay up all night, ensure sufficient sleep, adjust lifestyle, maintain a calm state of mind, pay attention to sunscreen, and you can choose skincare products that are rich in vitamin C, vitamin E, glutathione, arbutin, lignin peroxidase and other ingredients. Topical medication can choose topical hydroquinone and its glycoside derivatives, clinically common such as hydroquinone cream, but also can choose 15%-20% azelaic acid cream. Physical therapy can choose laser and intense pulsed light treatment, large spot low-energy Q-switch or fractional mode, fractional laser has certain clinical efficacy. There is also the option of chemical peels with fruit acids, which can increase the biosynthesis of mucopolysaccharides and collagen to reduce discoloration.