Ask the difference between kidney qi deficiency and kidney yang deficiency

Kidney-qi deficiency and kidney-yang deficiency belong to kidney deficiency, qi deficiency is caused by kidney-qi deficiency, patients will appear shortness of breath, spontaneous sweating, weakness, spermatorrhea, premature ejaculation and other symptoms. Kidney-yang deficiency is caused by kidney-yang deficiency decline, warming dereliction of duty, mainly will appear cold limbs, fatigue, nocturnal urination symptoms.