Severe Kidney deficiency can be seen as weakness in the waist and knees, darkness around the eyes, oedema, tinnitus and deafness, accompanied by symptoms such as heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest), night sweating (abnormal sweating after going to sleep, but sweating stops after waking up), and self-sweating (involuntary sweating during the daytime, which is aggravated with the slightest movement). Kidney deficiency can be seen as kidney qi deficiency, kidney yin deficiency, kidney yang deficiency or kidney essence deficiency, etc. In severe cases, kidney yin and yang deficiency can be seen. Often manifested as waist and knee weakness, tinnitus and deafness, etc. Kidney deficiency stagnation of fluid not transported, but also seen around the eyes black, edema and other symptoms. In severe cases, the symptoms of yin and yang deficiency can be seen in the form of heat or cold, night sweating and spontaneous sweating. In addition to the common symptoms of yin and yang deficiencies, severe cases can also lead to symptoms such as premature ejaculation in men and amenorrhea in women, or even sweating and other dead yin and dead yang manifestations, which need to be combined with the actual situation and analyzed with a comprehensive judgment.