Kidney deficiency is a collective term for kidney yang deficiency, kidney yin deficiency, kidney qi deficiency, and kidney essence deficiency. Patients with kidney deficiency may manifest premature aging of the face, forgetfulness, lumbar and knee soreness and tenderness (a feeling of soreness and weakness in the lumbar and knee areas), fatigue, reduced sexual function, and poor moods, etc. However, the clinical manifestations of different types of the disease have their own characteristics. 1. Kidney yang deficiency: manifested as dizziness, pale or grayish-black face, soreness and pain in the waist and knees, coldness of the whole body (the most obvious in the lower limbs), depression, loss of libido, male impotence and premature ejaculation, infertility in women with uterine cold; prolonged ejaculation of the stool, and the completion of the grain is not transformed (there is a large amount of undigested food in the stool), and so on. 2. Kidney Yin deficiency: soreness and pain in the waist and knees, spermatorrhea in men, scanty menstruation or amenorrhea in women, loose teeth and hair, dizziness and tinnitus, heart-heat (heat in the hearts of the hands and the feet and a feeling of heat in the heart and chest), hot flashes (a burst of heat), zygomatic redness (a reddish color in the cheeks and zygomatic bone area), and so on. 3. Kidney qi deficiency: Kidney qi deficiency can be characterized by two types: Kidney qi is not solid and Kidney does not contain qi (dysfunction of the kidneys, unable to incorporate gas). (1) Kidney qi not consolidated: manifested by fatigue (loss of spirit), tinnitus, weakness of the waist and knees, and frequent and clear urination. (2) Kidney does not contain gas: manifested as chronic coughing and wheezing, more breath, less breath, gas can not be renewed, movement is more wheezing, and so on. 4. Kidney essence insufficiency: mainly manifested as children’s growth and development delay, fontanel closure slow, short stature, mental retardation, bone impotence; adult premature aging, hair loss, loose teeth, tinnitus and deafness. If you have any of the above symptoms, it is recommended that you seek timely medical treatment.