Kidney deficiency can be manifested as forgetfulness, lumbar and knee soreness and weakness (lumbar and knee soreness and weakness) and fatigue to reduce sexual function, etc. Different types of performance have their own characteristics, which are mainly categorized into kidney yang deficiency, kidney yin deficiency, kidney qi deficiency, and renal essence insufficiency. 1. Kidney yang deficiency: symptoms such as dizziness and pallor as well as soreness and pain in the waist and knees (a feeling of soreness and weakness in the waist and knees), coldness in the whole body as well as depression and loss of libido can also be seen. 2. Kidney Yin Deficiency: symptoms such as soreness and pain in the waist and knees, spermatorrhea in men and menorrhagia or amenorrhea in women, as well as dizziness, tinnitus, and heartburn (heat in the hearts of the hands and feet, and a feeling of being irritated in the heart and chest) and hot flashes of zygomatic redness (redness of the cheeks and zygomatic bone area). 3. Kidney qi deficiency: it can be divided into two types: kidney qi is not solid and kidney does not hold qi (dysfunction of the kidneys, unable to incorporate gas). Kidney qi deficiency can be seen in symptoms such as fatigue (loss of spirit), tinnitus, and lumbar and knee weakness (a feeling of weakness in the lumbar and knee areas), while kidney qi deficiency is manifested in symptoms such as coughing and wheezing after a long period of illness, as well as symptoms such as excessive exhalation and inhalation, and the inability to sustain qi. 4. Kidney essence deficiency: children can be seen growth retardation and fontanel closure slow and short stature of the symptoms, while adults can be seen hair loss and loose teeth and tinnitus and deafness, as well as waist and knee soreness and tenderness (waist and knee soreness and weakness of the feeling) and other symptoms. If you feel unwell, you need to go to the hospital as soon as possible, and the doctor will make individualized diagnosis and treatment plan according to the specific condition, so as to avoid delaying the condition.