blackish facial patch

基本解释

Objective: To discuss the research evolution of blackish facial patch.
目的：探讨黧黑斑之研究沿革。
Methods: According the literatures of past dynasties, the research connotations of blackish facial patch 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。
Results: During the Warring States era, the name, etiology, pathogenesis, diagnosis and treatment of blackish facial patch had preliminary study, only formulae and drugs absence.
结果：早在春秋战国时期，对黧黑斑之病名、病因病机、诊断与治法已有初步研究，唯独方药缺如。