Abstract:Objective: To understand the etiology and aggravating and pathogenesis as well as skin types of female melasma patients. Methods: Clinical questionnaires were conducted to investigate and analyze 460 patients who came to our hospital to treat melasma. Results: Melasma was more common in young and middle-aged females who were between 25-35 years old, and was mostly distributed in both sides of the zygomatic region. Susceptible factors of melasma included heredity, pregnancy, mental factors, sun exposure and radiation, sleep, inappropriate skin care and cosmetology factors, etc. The skin types were mostly sensitive and dry. Conclusion: This investigation found that the attack of melasma were related to heredity, pregnancy, mental factors, sun exposure and radiation, sleep, inappropriate skin care and cosmetology factors. And the most common skin types of melasma are sensitive and dry skin.