Kidney removes waste from the body, making the urine, it acts as a filter for the blood. It also helps you to adjust the electrolyte level is important for bodily functions. Drain of urine from the kidney through the tubules, is called the ureter to the bladder. The bladder is filled, if there is an urge to urinate, bladder, and then empty the much wider tube than the ureter to the outside through the urethra.
In some people, the chemical is crystallized in the urine, to form the beginning of a kidney stone or lesions,. These stones, they are very small when smaller than the grain of sand, but you can grow over time to gradually or more inches. Urolithiasis is, nephrolithiasis (nephro = kidney + stone = stone) refers to the kidney stones, urinary tract stone disease, while pointing to the stone remained in the ureter, is a term that refers to the presence of urinary tract stones. The size of the stone, as if where it is, it is not less important, such as whether to prevent the urine from the interference and wastewater.