Objective: To discuss the research evolution of blackishfacialpatch.
目的:探讨黧黑斑之研究沿革。
2
Methods: According the literatures of past dynasties, the research connotations of blackishfacialpatch in each dynasty were inspected.
方法:根据历代文献,考察各个朝代黧黑斑之研究内涵。
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Results: During the Warring States era, the name, etiology, pathogenesis, diagnosis and treatment of blackishfacialpatch had preliminary study, only formulae and drugs absence.