The risk of passing another stone is 10% within a year, 35% within 5 years and
50% after that.
One condition associated with renal stones
is hyperparathyroidism (a disease
in which the parathyroid gland becomes enlarged and overactive,
secreting too much hormone). Your doctor should test for this.
Kidney stones can also be caused by small bowel disease, urinary tract infections, kidney malformations and gout, among other things. Chronic acidosis can produce calcium phosphate stones.