This article introduced the theoretical sources of "eliminating pathogen reactions". On this basis

we proposed "eliminating pathogen"is not only a kind of treatment method in TCM

but also is special side effect during TCM treatment. We summarized common "eliminating pathogen reactions"such as vertigo

fatigue

drowsiness

vomiting

diarrhea

rash

eliminating pathogen feeling in body or on acupoint

bleeding

weight gain or lose

menstrual detoxification

postpone or advance of menstruation and emotional fluctuation. We also distinguished between "eliminating pathogen reactions"and side effects of TCM

moreover analyzed the causes and countermeasures of "eliminating pathogen reactions".