Liver disease such as serious impact on liver function can lead to darkening of the face. Such as viral hepatitis, cirrhosis, liver cancer and other diseases, but exertion, staying up late, drinking alcohol and other dietary reasons can also be caused. Darkening of the face is mostly due to liver function damage, resulting in decreased inactivation of estrogen by the liver, estrogen metabolism disorders. 1. Disease causes: there are many kinds of liver diseases, including viral hepatitis, severe hepatitis, cirrhosis, cholestatic hepatitis, hepatocellular carcinoma, hepatic hemangioma, hepatic cysts and so on. Any liver disease that seriously affects liver function may lead to black color. 2. Dietary reasons: drinking alcohol, oily diet, tiredness, etc. can also affect the liver function, such as not effectively control is also likely to trigger the black color. For the black color caused by liver disease, it is recommended to consult a doctor with the necessary tests to clarify the condition.