The nephrolithiasis is bound to formation in kidneys, is more true in calyxes and hollows, concrements that causes various pathological changes of kidneys and urinary ways.

Signs, current. Sometimes illness proceeds is hidden and it is found out casually at a X-ray inspection in other occasion or its first attributes appear when the stone has greater sizes, and the patient marks only blunt acritical pains in lumbar area. More often at a small stone disease is shown by attacks of a renal colic, and during between attacks - dull aches, changes of urine, an output of stones and sand. The dull ache in lumbar area amplifies at long walking, during jolty driving, after a raising of gravities, but more often without the certain reasons. As the patient often applies a heater (then the pain remits), it is possible to see a "mottled" xanthopathy in the field of above the amazed kidney. Repeated researches of urine at a nephrolithiasis always find out a microhematuria amplifying after walking and exercise stresses.