| Objective: Based on the logical method of constructing the theory of exogenous etiology in traditional Chinese medicine,by combing the relevant theoretical content of epidemic pathogenic factors and diseases in ancient literature,and combining the research progress of current scholars and relevant clinical data of modern medicine,to identify the substantive connotation of epidemic pathogenic factors and related theories,in order to systematically construct the epidemic pathogenic factors and related theoretical system,and provide theoretical reference for the diagnosis and treatment of epidemic diseases in contemporary Chinese medicine.Methods: The main research method of this research topic is documentary informatics,and the method of historical analysis is used to systematically comb the content of ancient literature on epidemic and evil spirits and related theories,and grasp their origins and development context.Differentiate and analyze the essential content of epidemic and related theories by inductive analysis,and systematically sort out and summarize them.Referring to clinical data related to modern medicine,further explore the connotation of epidemic and related content and related theories.Content: The research content of this topic mainly includes three parts: 1.Sorting out the analysis of epidemic evil spirits and related texts;2.Based on the baseline of historical development,systematically sorting out and analyzing the content of ancient literature on epidemic evil spirits and related theories.This article analyzes the relevant discourses in various historical periods,and points out the shortcomings and progress of their understanding.3.Based on the understanding of ancient physicians,systematically construct epidemic and related evil spirits.Differentiate and analyze the differences and connections between the concepts of six pathogenic and evil factors and the exogenous causes of epidemic and evil factors.Classify the epidemic and evil spirits in a multidimensional manner.Conclusion:The etiology of exogenous diseases in traditional Chinese medicine can be classified into multiple dimensions,including obscenity,evil,epidemic,and toxin,among which obscenity is a physical factor;"Evil" is a biological pathogenic factor that can cause fever,while "epidemic" is a secondary concept under the classification of evil spirits,belonging to a class of infectious pathogenic factors among evil spirits.The six pathogenic factors are the causes of biological pathogenic factors that have clear pathogenic characteristics,while the toxic factors are exogenous causes that have the characteristics of hair entering the blood,swelling,ulceration,and decay.The two are similar to infectious factors in modern medicine.Epidemic pathogens are equivalent to infectious factors in modern medicine,which have a common susceptibility to people,such as wind and poison epidemics.The concept of pure epidemic pathogen aims to emphasize its infectivity,but does not reflect the pathogenic characteristics of evil qi on the human body.Specific pathogenic characteristics should be combined with the concept of six evils.In addition,epidemic pathogens can also have the characteristics of partial epidemics according to different vulnerable sites.According to their infectivity,there are differences between major epidemics and frequent epidemics.To sum up,epidemic pathogenic factors belong to a class of infectious pathogenic factors in TCM,which are biological pathogenic factors and have a general susceptibility in the population.The classification of pathogenic factors in traditional Chinese medicine is also multidimensional,ranging from wind,cold,dampness,dryness,fire(heat),and warm epidemics,which are classified according to their pathogenic characteristics,to major and minor epidemics,which are classified according to the severity of the conflict with the human body’s positive qi,to major and frequent epidemics,which are classified according to their infectivity.Some pathogenic factors also have the susceptibility of specific species and populations. |