According to the pathogenesis theory of traditional Chinese medicine(TCM)

toxin pathogen is an important factor in the onset and progression of malignant tumors. The TCM syndrome manifested by the accumulation of toxin invading the human body is called "toxin syndrome" . "Toxin syndrome" belongs to the concept of TCM syndrome and contains a set of TCM syndromes such as "wind-toxin syndrome" and "dampness-toxin syndrome" . These "toxin syndromes" may be subdivided according to the nature of different pathogenic factors as independent pathogenic syndromes with independent connotations that exist in parallel with "wind syndrome"

"dampness syndrome"

and other pathogenic syndromes. However

how to accurately identify a specific "toxin syndrome" in clinical practice remains an important problem that needs to be solved. "Cancerous toxin pathogenesis theory" claims that "cancerous toxin" is the core pathogenesis of malignant tumors and also the specific etiological and pathological product affecting the onset and progression of tumor diseases. "Cancerous toxin" has rich connotations

and this concept is at the level of disease differentiation rather than TCM syndrome differentiation

which renders it dissimilar to the "toxin syndrome" in cancer patients. This paper sorts out and analyzes the concept of "toxin syndrome" and "cancerous toxin"

supplements and improves the concept of "toxin syndrome" in the theory of syndrome elements

and also provides a theoretical basis and reference for identification of "toxin syndrome" in malignant tumors.