Inspection of complexion

It suggests heat syndrome. Red is the color of blood. Heat accelerates blood flow and makes the vessels filled up, so the skin presents red color. The excessive heat syndrome is manifested by full flushed face which generally represents the yang-qi being stagnated in the exterior. If the red complexion accompanied by tidal fever and delirium, it suggests the excessive heat accumulating in the interior. The vacuity heat is shown by hectic cheek. Postmeridian reddening of the cheeks pertains to the deficient fire flaming-up due to yin deficiency in the chronic disease.