Gray hair is generally considered to be caused by congenital endowment deficiency (poor innate constitution and functioning), kidney deficiency, strain and injury to blood, etc., and has nothing to do with liver, gallbladder, dampness and heat. Chinese medicine believes that the growth of hair and kidney qi and essence and blood have a close relationship, so the hair can reflect the strength of the body’s kidney qi and essence and blood. Normal people have black, dense and moist hair, which is a manifestation of abundant kidney energy and sufficient essence and blood. Hair white with tinnitus, lumbar and knee pain and weakness, is often a manifestation of kidney deficiency; hair white with insomnia and forgetfulness, palpitations and palpitations of the heart (heartbeat, panic and anxiety) and other symptoms, often for the labor of God and blood. The gray hair due to innate endowment deficiency caused by the person, is not pathological, generally do not need treatment. If gray hair suddenly appeared, and accompanied by physical discomfort, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor’s diagnosis and treatment, not blindly use their own medication, so as not to cause adverse consequences.