"Ping Ren"（ 平人） is generally considered to be healthy people. Through the analysis of the relevant provisions of Treatise on Cold Pathogenic and Miscellaneous Diseases（ 《伤寒杂病论》）

it can be found that ZHANG Zhongjing’s so-called "Ping Ren"is only a person who seems to be disease-free. The essence is that there are people who have hidden pathogenic qi or have internal damage. Its characteristics are similar to those of "no symptoms"patients in the clinic. According to the characteristics of ZHANG Zhongjing’s"Ping Ren"concept

when the clinical "no syndromes for differentiation"was met

the following strategies can be used: to achieve the fourdiagnosis

especially the tongue

pulse

and abdominal diagnosis; to consult the medical history and know the cause of the hidden pathogen

and type characteristics; discriminate constitution

understand the tendency of disease development and susceptibility to certain evils; clear incentives

diet fatigue or emotional stimuli

which can often break the illusion of "no syndromes for differentiation".