It is caused when there is too much calcium in the urine high amounts of calcium.
calcium stones the most common of kidney stones are made of calcium usually in the form of calcium oxalate and sometimes calcium phosphate calcium is derived from diet and is required for muscle function and bone mass excess calcium is excreted in the urine where it can combine with oxalate causes of kidney stones kidney stones are usually formed following a build up of a substance in the body this build up may be any of the following calcium ammonia uric acid a waste product produced when the body breaks down food to use as energy cystine an amino acid that helps build protein kidney stones cause kidney stones may form when the normal balance of water salts minerals and other substances found in urine changes how this balance changes determines the type of kidney stone you have most kidney stones are calcium type they form when the calcium levels in your many kidney stones cause no symptoms at all when kidney stones do cause symptoms they usually include pain a person may feel pain across the back or pain that starts in the back or kidney area the pain goes along the line of the vessel that carries urine from the kidneys to the outside of the body types of kidney stones include calcium stones most kidney stones are calcium stones usually in the form of calcium oxalate oxalate is a naturally occurring substance found in food some fruits and vegetables as well as nuts and chocolate have high oxalate levels your liver also produces oxalate calcium stones are the most common type of kidney stone they are caused when there is too much calcium in the urine high amounts of calcium could be a result of an inherited condition called hypercalcuria which leads to large amounts of calcium in urine high levels of vitamin d you may not know you have a kidney stone unless it causes pain is large and blocks the flow of urine or is being passed the most common symptom is severe fluctuating pain in the lower back or side under the ribs other symptoms include bloody or cloudy urine that smells bad
http://www.innerbody.com/diseases-conditions/kidney-stones http://www.nhs.uk/Conditions/Kidney-stones/Pages/Causes.aspx http://www.webmd.com/kidney-stones/kidney-stones-cause https://www.cedars-sinai.edu/Patients/Health-Conditions/Kidney-Stones.aspx http://www.mayoclinic.org/diseases-conditions/kidney-stones/basics/causes/CON-20024829 http://www.nhs.uk/Conditions/Kidney-stones/Pages/Causes.aspx http://www.davita.com/kidney-disease/overview/symptoms-and-diagnosis/kidney-stones-and-chronic-kidney-disease/e/4722
causes for kidney stones