The difference between the two is as follows: kidney yin deficiency is the kidney yin liquid insufficiency performance of the symptoms, mostly by the long illness injury to the kidneys, or endowment insufficiency, excessive sexual intercourse, or overdose of warm and dry but the yin of the products caused by. The main manifestations are soreness of the waist and knees, dizziness, tinnitus, insomnia, hot flashes and night sweats, heat, dry throat and cheekbones, dry urine and stools, a red tongue, and a fine pulse.

Kidney yang deficiency is the kidney yang qi deficiency symptoms, mostly by the body yang deficiency, or high kidney loss, or long-term disease injury to the kidneys, housework excess. Its main performance for the waist and knee pain, cold limbs cold, especially in the lower limbs, dizziness, mental depression, face white or sallow, women's cold infertility; or stools for a long time more than, complete the grain is not chemical, the diarrhea, or swelling, below the waist is very, press the depression, or even abdominal distension, the whole body swelling, palpitation, coughing.

There are kidney yang deficiency and kidney yin deficiency, which is called kidney yin and yang deficiency in traditional Chinese medicine, and can be adjusted with proprietary Chinese medicines specializing in kidney yin and yang deficiency.