Epidemiologic investigation did not show any special environmental combination causing urinary calculi creation. The disease concerns usually people between 25-50 year old. Most of the urinary calculi are compound of calcium oxalate and phosphate. In contaminated urine more often ammonia-magnesium phosphate. General constitutional factors having influence on urinary stones creation are specific gravidity, crystallization inhibiting factors concentration, hypercalcuria, urine acidity, hyperoxaluria and urinary tract infection. Unilateral, single urine stone is usually the effect of the local factors. Bilateral and multiple urinary stones are usually the effect of the local factors. Bilateral and multiple urinary stones usually are the effect of general constitutional and environmental factors. Complaints depend on the stone localisation, its dimensions and period of the disease. Nowadays most of the urinary calculi localised in the kidneys and ureters are treated with ESWL, PCNL and URS. Staghorn calculi are treated with the combination of PCNL and ESWL or operatively. Urinary stones localised in the bladder can be the consequence of descending ureteral stones, but usually they are created in the bladder as a consequence of the subvesical obstruction. The treatment is based on transurethral lithotripsy with simultaneous obstruction treatment by electrosurgery of the prostate or bladder neck or visual urethrotomy. Large and hard stones can be removed by cysto-lithotomy. Metafilaxis is the recurrences prevention, based first of all on diminution of crystalloid concentration and their solubility in the urine and providing crystallization inhibiting factors. Calculi composed of urine acid can be treated conservatively by their dilution.