Grey cheeks are a reflection of a physical disease problem. Chinese medicine considers the dark cheeks as a manifestation of kidney deficiency, so it is often treated with kidney tonics. In addition, patients with hepatic sclerosis, hyperalgesia, chronic renal insufficiency, chronic cardiopulmonary insufficiency and hepatocellular carcinoma may also experience darkening of the cheeks. As for the darkening of the cheeks due to physiological phenomena, age-related pigmentation spots and women’s pregnancy spots, they are normal phenomena and not diseases. The following diseases are the causes of gray cheeks: 1, lung impotence Lung impotence, also known as lung atrophy. Qing You in Jing said: “impotence, atrophy. As the grass and trees are withered and not glorified” …… (Jin Gui Yao Xin Dian). It indicates that lung impotence, lung lobe impotence is the main feature. It means that the impotence of the lung lobe does not require clinical coughing and salivation as the main symptom, and is a chronic deficiency disorder of the lung. The basic symptoms are fever, shortness of breath, cough, and even nasal agitation, pale face and blue lips. 3. Pulmonary ligament Zhang Pulmonary ligament Zhang is caused by paralysis of the lung qi due to evil qi offending the lung, internal accumulation of phlegm, and expansion of the lung ligament. The main manifestation of pulmonary disease is chronic cough, coughing up large amounts of mucous or pus sputum and coughing up blood intermittently. Bronchiectasis refers to chronic inflammation of the bronchial tubes and their surrounding tissues that damages the walls of the tubes, causing dilatation and deformation of the bronchial lumen. The clinical characteristics are chronic recurrent cough, coughing up pus sputum and hemoptysis, which are common bronchopurulent diseases. 4, ischemic-hypoxic encephalopathy ischemic-hypoxic encephalopathy (HIE) is a perinatal neonatal brain lesion caused by hypoxia, mainly caused by intrauterine distress, neonatal asphyxia hypoxia, a few can occur in other causes of brain damage. 5. Facial pyoderma Facial pyoderma is an acute inflammatory skin disease characterized by penetrating, purulent nodules. It occurs in healthy young women. 6, adenovirus pneumonia Since 1958, it has been confirmed that adenovirus causes upper respiratory tract infections, but also can lead to pediatric pneumonia, mostly seen in infants and children from 6 months to 2 years old adenovirus pneumonia is the most critical, especially in the northern provinces, the seriousness of the disease is also more than the south. There were large epidemics of adenovirus pneumonia in northern, northeastern and northwestern China in the winter of 1958 and 1963, and the disease was extremely serious. Adenovirus is usually transmitted through the respiratory tract. Adenovirus upper respiratory tract infections and pneumonia often occur together in group institutions for children. Serologic studies in populations indicate that maternally transmitted adenovirus-specific antibodies are often present during the first few months of life and are lacking thereafter until 2 years of age, with a gradual increase after 2 years of age. This is fully consistent with the clinical observation that 80% of adenovirus pneumonia occurs in infants and children between 7 and 24 months of age. It is worth noting that the higher the number of susceptible people in each age group locally, the higher the number of adenovirus respiratory infections, and the greater the chance of adenovirus pneumonia in infants and children. Adenovirus pneumonia is seen mostly in winter and spring in northern China, and only occasionally in summer and autumn, with a high prevalence year in Guangzhou. This type of pneumonia accounts for about 20% to 30% of viral pneumonia in Beijing.