Symptoms are just symptoms. There is probably a complex etiology and pathogenesis behind any symptom. Traditional Chinese medicine seeks the cause through syndrome differentiation, examines the cause and determines the treatment. Syndrome differentiation is to identify the current stage of a disease. System state (state), that is, syndrome. Traditional Chinese medicine treats syndromes and rarely directly targets symptoms. Although syndrome differentiation can establish the pathogenesis, it should be noted that each syndrome is only a longitudinal section in the development process of the disease and cannot represent the entire development process of the disease. Moreover, the syndromes listed for each symptom in this database are only the tip of the iceberg and can be used as a reference for ideas. They should not be regarded as all possibilities of the symptom.

"Su Question‧Cough Theory" says: "Five Stores and Six Prefectures, They all make people cough, not just the lungs." There are at least ten types of cough syndromes (systemic states) in traditional Chinese medicine. Compared with Western medicine in treating cough, I don’t know how advanced it is. Multiple generations. Isn’t it just a cough? The existence of any part of the human body requires the direct or indirect contribution and mutual influence of other parts; just as the survival of the same person depends on various direct or indirect supports from other members of the entire society. Therefore, in a broad sense, any symptom is related to various parts of the body. Problems in any part of the body may directly or indirectly affect another part, to varying degrees. When seeing any symptom, he is a wise doctor who can go straight to the root of the problem instead of "treating the head for a headache and the foot for a sore foot".