The word “Calculus” itself comes from Greek “chalix” which means Lime. In Arabic it is called “Hasaatul kulia”; and in Urdu, it is called “Pathry”. These stones can form anywhere in the urinary/renal system (Ureter, Urethra, Bladder, and Kidneys) over time due to accumulation of dissolved chemicals that are generally minerals such as salts and calcium oxalates. In some cases they are made of uric acid, and etc. They may start out as small grains but often they stick together to form pebble like stones as large as a few centimeters. These stones generally form in the organs and may remain undetected without any symptoms but once they are on the move and they start to travel through the urinary system, they can cause sudden and excruciating pain. Calculus has been known to recur.