Black face. What's going on?

Black complexion, to see what causes the blackness of the complexion. Traditional Chinese medicine believes that blackness is the performance of kidney deficiency, commonly used kidney drugs to give treatment. First, there are some diseases, such as liver cirrhosis, adrenocortical hypofunction, chronic renal insufficiency, liver cancer, chronic cardiopulmonary insufficiency, etc., will also cause patients to show the phenomenon of blackness. Secondly, taking certain drugs for a long time, such as anticancer drugs, will also cause patients to show blackness. Finally, there may be physiological phenomena, such as pigment spots in old age, pregnancy spots in women, which are normal conditions and do not need treatment. If it is due to other diseases, such as cirrhosis, renal cortical hypofunction, chronic renal insufficiency, symptomatic treatment should be carried out. However, first of all, it is necessary to clarify the cause, to see whether it is a normal manifestation or a physical disease.