In Chinese medicine, phlegm and saliva are pathological products that accumulate when the body’s normal fluids do not circulate properly, blocking the meridians, qi and blood, and thus leading to disease. According to TCM, phlegm and saliva are pathological products produced by the body’s poor circulation of fluids, and their source is abnormal metabolism of fluids. Phlegm-salivation can lead to a wide variety of diseases in the human body, such as epilepsy, cough and wheezing. Phlegm and saliva in Chinese medicine is an abstract concept that can be divided into tangible and intangible phlegm and saliva. Tangible phlegm is the visible phlegm, similar to the phlegm of airway secretions in Western medicine, which often leads to coughing, lung distension, asthma and other lung disorders. Invisible phlegm is invisible, often leading to epilepsy, scrofula (mainly cervical lymph node tuberculosis), gall disease and other diseases throughout the body. Diseases caused by phlegm and saliva come in various forms and are usually more difficult to treat, requiring a longer treatment period. If you feel unwell, please go to the hospital and choose the appropriate treatment plan under the doctor’s guidance.