Kidney deficiency refers to the deficiency of kidney essence, yin and yang, with many types. The two most common types are kidney yin deficiency and kidney yang deficiency, which can be judged according to symptoms. Deficiency of kidney yin is often manifested as fear of heat, irritability, insomnia, dry mouth, dizziness, tinnitus, dry stool, red tongue coating, waist and knee weakness, etc. The main manifestation of kidney yang deficiency is cold, which usually results from yang deficiency. The symptoms usually include fatigue, fatigue, fear of cold, fear of cold, weakness of waist and knees, excessive nocturnal urination, loose stools, edema, etc. The treatment of kidney yin deficiency is different from that of kidney yang deficiency. It is suggested that patients should go to a regular hospital for diagnosis and treatment, instead of blindly recuperating themselves.