Kidney deficiency may cause dark circles under the eyes. According to Chinese medicine, due to long-term late night or long-term deficiency of qi and blood, long illness, physical weakness, lack of sleep, stimulation of tobacco and alcohol, excessive sexual intercourse and other factors, will lead to the local function of the body or kidney function damage, resulting in the symptoms of kidney deficiency. Black is the color of the kidney, the eyes rely on the nourishment of the essence of the five organs, kidney essence deficiency is less than the lack of essence of the two eyes, the black of the kidney floating on the top of the two eyes, so the eyes are dark, the clinical application of Liu Wei Di Huang Wan, Zhi Bai Di Huang Wan, Jin Kui Ren Qi Wan, etc. for treatment. If the eyes are dark for a long time, it may be a manifestation of kidney deficiency and blood stasis, often related to endocrine and metabolic disorders, adrenal cortical dysfunction and other factors, and requires a hospital to improve the examination for differential diagnosis. In addition, from the western medical point of view, the symptoms of dark circles under the eyes may also appear when one has endocrine disorders, thyroid function decline, thyroid gland lesions and other diseases. You should actively cooperate with the treatment under the guidance of your doctor, and generally the dark circles under your eyes can be relieved after controlling the original disease. When dark circles appear, you can also use a hot towel on your eyes and massage the eyes at the same time, which can promote local blood circulation. However, if the dark circles are very serious, they may need to be removed by laser or surgical methods.