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recurrent renal stones

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want to know the causes of formation of recurrent renal stones.
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replied July 30th, 2017
Welcome to e health forum.

Urolithiasis or kidney stones refers to the presence of calculi anywhere along the course of the urinary tracts.

By far the most common stone is calcium oxalate, however the exact distribution of stones depends on the population and associated metabolic abnormalities (e.g. struvite stones are more frequently encountered in women, as urinary tract infection as more common)

The more common composition of stones include :
- calcium oxalate +/- calcium phosphate: ~75%
- struvite (triple phosphate): 15%
- pure calcium phosphate: 5-7%
- uric acid: 5-8%
- cystine: 1%

In most cases of calcium renal stones, there is no specific cause of the stones, Idiopathic hypercalciuria without hypercalcemia is the main cause in such instances. But increasing the fluid intake has been found to reduce the recurrances in such patients.

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