There are many reasons for the formation of chloasma, both internal and external. Internal factors: mental tension, emotional depression, lack of sleep, constipation, chronic diseases, as well as pregnancy, pregnancy, etc. The imbalance of qi and blood, endocrine disorder, skin disorder and metabolic disorder lead to pigmentation and deposition, thus producing chloasma. External factors: atmospheric pollution, dry climate, prolonged sun exposure (ultraviolet radiation), use of bad cosmetics, long-term use of contraceptives, etc. produce chloasma. The methods to remove chloasma: 1.Spot removal cream: fast spot removal can’t cover up the troubles, generally fast spot removal products are all cosmetic products applied externally, although they cover up for a short time, but can’t cure. 2.Laser spot removal: It is just a fleeting beauty. Although the beauty can be seen immediately with laser, the root cause of the spot is not eliminated, and the consumption of food containing melanin and sunlight exposure are easy to be repeated and more serious. 3.Detoxification and skin spot removal: improve body immunity, expel toxins from the body, regulate gastrointestinal function, promote metabolism and balance estrogen in the body. The root cause of chloasma is endocrine disorder. Irregular menstruation and disharmony of qi and blood are the root causes, and the deficiency of qi and blood will lead to the decrease of estrogen level in the body, and melanin will be easily deposited. The external manifestation is the loss of skin nourishment and facial pigmentation. Women with facial pigmentation often have low menstrual volume, dark color or even blood clots, cold hands and feet, which are typical manifestations of coldness in the uterus and deficiency of qi and blood. Therefore, melasma is not just a superficial work, even if you really remove the spots, you need to check your body comprehensively, because many physiological diseases can also cause the skin to deteriorate, so the usual diet and sleep are also related to the skin problems. The most important step to remove melasma is to regulate the diet and sleep.