Melasma is a common clinical pigmentation skin mucosal disease, and its occurrence has a certain relationship with gynecological diseases, but the specific cause of melasma is not very clear in clinical practice. However, it can be observed that some women with reproductive system diseases, such as pelvic effusion and other inflammatory diseases, can indeed lead to chloasma on the skin. The occurrence of melasma may also be closely related to the medications that the patient has been taking for a long time and her own hormone level. However, it does not necessarily mean that the patient has gynecological diseases because of the appearance of chloasma on her face, because the occurrence of chloasma may also be closely related to heredity, sunlight and emotion.