Melasma is a symmetrical yellow-brown pigmentation spot on the face, which is common in young and middle-aged women. There are many reasons for the occurrence of melasma, such as ultraviolet radiation, cosmetics, pregnancy, endocrine disorder, race and heredity. Melasma is not harmful to human body, but it will affect the aesthetics, so some measures can be taken to reduce and prevent melasma. You can take more vegetables and fruits that contain vitamin C and vitamin E, such as tomatoes, kiwi, oranges and oranges. It is vital to protect yourself from the sun and wear sunscreen even on cloudy days because the sun and UV rays can trigger the release of melanin. Choose cosmetics that are gentle on the skin; products that irritate or sting the skin (such as astringents) can worsen melasma. Endocrine disorder is another reason for the occurrence of melasma. It is recommended to keep at least 8 hours of sleep a day and actively adjust your mind in general. The normal function of the endocrine system in the body, especially the adequate secretion of estrogen, can ensure smooth and delicate skin. Chinese medicine says that the spleen qi is full and the outer glory is on the surface in order to make the skin look good. Therefore, Chinese medicine recommends endocrine regulation, spleen and blood toning medication, adequate nutrition, and enough rest and sleep to help keep the skin in good condition.