The human face is not only a stage for the performance of the seven emotions, but also a window to reflect the diseases in the body. Therefore, the examination of the face is an important and easy way to detect diseases at an early stage. Scarlet fever face: The face is congested and flushed, and the skin around the mouth and nose is obviously pale. This symptom is a symptom of scarlet fever, an acute rash respiratory infection caused by a group A type B hemolytic streptococcus, which is known in Chinese medicine as “rotten throat cholera” and occurs mainly in the winter and spring. Any age can be affected, but babies between the ages of 2 and 8 are most likely to be infected. The differential diagnosis of scarlet fever face: 1. Acute face: flushed face, happy and restless, with painful expression, is a manifestation of acute fever, such as lobar pneumonia, malaria, etc. 2, bitter smile face: tetanus is a neurological syndrome caused by Clostridium tetani toxin. Patients with local or generalized muscle paroxysmal or tonic spasms, as the face and neck muscles are often involved, the teeth closed and bitter smile face as the characteristic performance. 3, mucinous edema face: the characteristic face of hypothyroidism in adulthood. Chinese medicine considers it to be evidence of spleen qi deficiency and kidney yang deficiency; Western medicine considers it to be mostly seen in hypothyroidism. This face can also be seen in desmoidosis and hypopituitarism. 4, chronic face: gray or pale face, gaunt face, dull gaze. Commonly seen in chronic wasting diseases, such as liver cirrhosis, malignant tumors, severe tuberculosis, etc. 5, measles face: both eyes slightly red and afraid of light, increased secretions in the eyes, nasal obstruction, accompanied by fever and cough, etc. 6.Anemic face: pale and dull face, pale eyelids, lips and tongue, tired and weak expression. 7, dementia face: large head and short neck, small eye fissures, deep and wide flat nose, nasal hypertrophy, large and wide tongue and often sticking out of the mouth, common in patients with cretinism. 8, typhoid face: indifferent expression, unresponsive, inactive state. Mostly suffering from intestinal typhoid, encephalitis, cerebrospinal meningitis and other high fever debilitated patient’s face. 9, cachexia face: face extremely thin, yellowish, poor skin elasticity, mostly seen in patients with chronic wasting diseases, such as tuberculosis, advanced cancer, etc. 10, mask face: facial expression dull, as if wearing a mask, commonly seen in patients with encephalitis, tremulous paralysis. 11, liver disease face: gray face, cheeks thinning, nose forehead and cheeks with brown pigmentation. 12, acromegaly face: head enlargement, facial lengthening, large and forward protruding jaw, two bone bulge, ear and nose enlargement, lip and tongue thickening, common in patients with pituitary tumors. 13, hemifacial spasm face: paroxysmal irregular twitching of the hemifacial muscles, sometimes only manifesting as all-seeing spasm or corner of the mouth twitching, common in patients with facial nerve palsy sequelae and trigeminal neuralgia, central nervous disorder. 14, hyperthyroidism face: facial muscle wasting, protruding eyes, shining gaze with frightened expression, increased eye fissure and less blinking, accompanied by happy and restless, irritable performance is common in patients with proptosis hyperthyroidism. The expression is a startled face, easily stimulated by various very small external sounds and showing a very frightened appearance; bulging eyes, similar to goldfish eyes; excitement and restlessness, irritability and irritability. This is a typical manifestation of abnormal hyperthyroidism. The face is congested and flushed, and the complexion around the mouth and nose is distinctly pale. A healthy person’s face should have two eyes, clear eyebrows and lustrous skin.