Opposite to Kidney yin deficiency, yang is necessary for the liver to transform the yin energy to yang energy to promote the implantation of egg into the uterus and kidney is the main organ to regulate each step of the reproductive function. If there is not enough yang, it may cause prolong yin phrase as a result of our body needs time to perform each step of phrase I.
Kidney yin is also known primordial yin or true yin and defined as the foundation of the yin fluid of the body, therefore it helps to moisten, nourish the organs and tissues by maintaining the body fluid balance with fire of kidney yang.





