Usually, the symptoms of phlegm and blood stasis obstructing the lungs include coughing and shortness of breath, chest tightness and tingling, spitting with much sputum or sputum with blood in it, purplish tongue, greasy moss, and slippery or astringent pulse. Phlegm and blood stasis obstructing the lungs is a disease in Chinese medicine, which refers to a common condition in which phlegm and blood stasis are impeded in the lungs. From the point of view of etiology, phlegm and stasis obstruction of the lungs is usually caused by deficiency of spleen qi, or by cold and dampness, or by prolonged coughing that injures the lungs. Weakness of the spleen qi (spleen qi weakness) in the body qi, blood and fluid distribution is not normal, can be coagulated into phlegm, stored in the lungs, which is the so-called spleen as the source of phlegm, while the lungs are the storage of phlegm. Qi deficiency is incapable of promoting blood flow, which can lead to blood stasis and stagnation in the lungs. In addition, external evils attack the human body, the lungs are delicate organs, vulnerable to the influence of external evils, resulting in the lungs of the Xuanfa Suxiong malfunction, water and fluid can also form phlegm and dampness. Lung qi upward reversal can be manifested as coughing and wheezing, blood stasis can cause chest tightness and stabbing pain, phlegm-dampness internal obstruction (phlegm and dampness blocking the internal organs and meridians) can lead to spitting phlegm, the treatment of phlegm is recommended to eliminate dampness, activate blood circulation and relieve pain (through the elimination of blood stasis to alleviate the pain). If you feel unwell, consult your doctor for a timely consultation and treat the symptoms according to the actual situation.