Ureterolithiasis in its original Greek literally means "Urine Stone". It is relatively common and has been plaguing mankind for many centuries.
Ureters are the ducts that move urine along from the kidneys to the urinary bladder, also called cloaca.
Ureterolithiasis can cause a painful condition called a renal colic attack in which either one or both of the ureters become blocked by kidney stones.
Renal colic is often described as the strongest pain a person has ever felt.
75 to 85 percent of kidney stones or calculi are calcium stones. About half of caluli are composed of both oxalate and calcium phosophate.