Is coughing and spitting white phlegm cold or fire

Cough and white phlegm are cold or fire, which cannot be generalized. Phlegm is pathological mucus discharged from the lungs and airways. From the color, texture and quantity of phlegm, we can judge the pathological changes of the zang-fu organs and the nature of pathogenic factors. Phlegm is white and thin, and it is easy to cough up. The sputum volume is more, which mostly belongs to cold phlegm. Because cold evil blocks the lungs, the phlegm is not condensed, or the spleen yang is insufficient, and the dampness is accumulated into phlegm, which is caused by invasion of the lungs. This is cold. If the sputum is white and slippery, it is easy to cough up, it is mostly wet phlegm, which is cold dampness. If phlegm is white and sticky and difficult to cough up, the sputum volume is small, mostly caused by pathogenic heat invading the lung, decocted for phlegm, phlegm gathering in the lung, or dryness invading the lung, consuming lung and body fluid, or originally caused by lung yin deficiency and body fluid deficiency, or due to negligence of purification, this is fire or dryness. If you can't distinguish whether white phlegm is cold or fire, it is recommended to consult a professional Chinese medicine doctor, because the clinical condition is often more complicated.