Kidney-Yang deficiency and Kidney-Yin deficiency both have manifestations of kidney deficiency, such as lumbar and knee soreness and weakness (a feeling of soreness and weakness in the lumbar and knee regions), tinnitus and deafness, etc. However, there are certain differences between the two, mainly in terms of pathogenesis, symptom manifestation and treatment. For example, kidney yang deficiency is mainly treated by warming and tonifying kidney yang (warming and replenishing kidney yang), while kidney yin deficiency is treated by nourishing and tonifying kidney yin. 1. Pathogenesis: The pathogenesis of Kidney-Yang deficiency lies in the deficiency of Kidney-Yang, while the pathogenesis of Kidney-Yin deficiency lies in the deficiency of Kidney-Yin. The two are different in nature, with one yin and one yang. 2. Symptoms: Kidney yang deficiency is due to the lack of yang, so the body presents a cold phenomenon, which can be seen in the fear of cold limbs (fear of cold, cold limbs), long urine, pale tongue, white moss, pulse sinking, and so on. Kidney yin deficiency is due to yin deficiency that generates heat, there will be the manifestation of deficiency heat, manifested as five heart heat (heat in the heart of the two hands and two feet, and self-consciousness of the heart and chest), hot flashes (a burst of heat), night sweating (sweating abnormally after falling asleep, and waking up sweating stops), the tongue texture is red, moss is scarce, the pulse is thin, and so on. If you are suspected of suffering from kidney deficiency, please consult a Chinese medicine practitioner in time to avoid adverse consequences.