Kidney stones, also called renal calculi, are small crystalline deposits which are made up of minerals and salts in the kidneys. These stones can range from very small size to large sized stones. Generally, kidney stones are nearly harmless when they are present in the kidneys, but cause pain as they travel down through ureters.
Kidney stones vary in size. Some are very small and others are as large as a few inches big. Some kidney stones may not produce symptoms such as pain. These are known as silent stones. But people who have kidney stones generally experience sudden onset of excruciating, cramping pain.
Kidney stones have variable appearances. They may vary with respect to their color, size and shape. The size of kidney stones can range from small sized crystals to large sized stones such as the size of a golf ball. Usually, small-sized stones can easily pass through the urinary tract without any medical assistance.
Kidney stones are of different sizes. They range from small-sized crystals (small kidney stones) to large-sized stones (large kidney stones) such as the size of a golf ball. Variations in sizes of kidney stones can influence their removal and treatment. Kidney stones of less than 5mm are considered to be small.
Most kidney stones ultimately pass from the kidney through the urethra on their own. However, treatment is needed to control pain from kidney stones because the pain can be severe. The passage of kidney stones can sometimes occur easily with the urine but it can be a dreadful event in some cases.