The appearance of dark yellow in the facial triangle may be related to physiological factors such as lack of sleep and ultraviolet radiation, which can be improved by paying attention to rest and strengthening sun protection. It may also be related to liver and gallbladder diseases, anemia and other diseases, and should be treated according to the cause of the disease. 1. Physiological factors leading to yellowish skin. Prolonged lack of sleep will affect the level of hormone secretion in the body, which will further lead to a decline in the physiological function of the skin and the appearance of yellowish, the main treatment is to pay attention to rest, to ensure adequate sleep. Ultraviolet radiation, will affect the physiological function of the skin, so that the skin quality decline, in the treatment of the main attention to do a good job of sunscreen. 2. Pathological factors leading to dark yellow skin. Hepatobiliary lesions: acute and chronic hepatitis, bile duct stones, bile duct obstruction and other diseases may cause skin yellowing, in the treatment of the need to give targeted antiviral, hepatoprotective liver and surgical treatment. Anemia: mild anemia usually does not have dizziness and conjunctival pallor, but only manifests as yellowish skin and loss of appetite, the main treatment is to deal with the primary cause of anemia and give blood replenishment treatment, such as oral ferrous sulfate oral solution, spleen blood granules and so on. Due to the different causes of different treatments, specific cases need to go to the regular medical institutions, and then standardized symptomatic treatment after the cause of the disease is clarified.