Nine-nine - age virile vinegar has the function of diuretic, soluble stone and stone. It can not only cure constipation, urinate, but also can prevent kidney stone, bladder stone, urinary calculi and gallstones. Most of the stones are calcium oxalate, calcium oxalate and calcium phosphate. Vinacin can enhance the function of the kidney and has a diuretic effect. The citric acid and acetic acid can significantly increase the solubility of calcium oxalate and prevent the crystallization of calcium oxalate in urine. As a result, wei he vinegar can diuretic, prevent stone disease.