Kidney deficiency and spleen and stomach deficiency may lead to gray hair on the top of the head. Chinese medicine believes that the kidney, its Hua in the hair, kidney essence has the role of hair, hair can reflect the kidney qi of the kidney, kidney qi, kidney essence full, hair black and bright, kidney qi decline, kidney essence deficiency is prone to gray hair and hair thinning, hair loss, dryness and so on. Kidney deficiency can be accompanied by lumbar and knee weakness (a feeling of weakness and tenderness in the waist and knees), tinnitus, frequent urination, and fear of cold. At the same time, Chinese medicine also believes that the hair for the blood of the rest, hair depends on the qi and blood essence of the nourishment, and the spleen and stomach for the qi and blood biochemistry of the source, able to water and grain transportation known as the qi and blood essence, and transfer to the head in order to nourish the hair, so that the hair black and bright, if it is a deficiency of spleen and stomach is a lack of qi and blood biochemistry of the source, the qi and blood deficit, can not nourish the hair, then prone to gray hair or yellow hair situation. Gray hair on the top of the head can be consulted in a regular hospital, by a professional Chinese medicine doctor for identification, reasonable use of medication to regulate.