In most cases with a small stone the disease is manifested with renal colic attacks, and with the dull pains, changes in urine, release of stones and sand between the attacks. Dull pain in the lumbar area increases with prolonged walking, during the shaky ride, after lifting weights, but more often without a specific reason. If the urinary tract along with stones has an infection, there may be a temperature rise and chills.

The main kidney stones symptoms:

•low-back pain extending to the genitals;

•admixture of blood in the urine;

• frequent urge for urination;

• stones discharges.

If the stone completely blocked lumen urethra, the kidney accumulates urine, which causes attacks of renal colic. It occurs as spasmodic pains in the loin, rapidly extending to the appropriate half of the abdomen. The pain can last for several hours or even days, remitting and resuming periodically. After the stone discharges, you may observe the blood in the urine.

One of the complications of nephrolithiasis is a chronic pyelonephritis. In addition, it may cause a purulent kidney fusion – in this case it’s necessary to resort to a surgical intervention. Moreover, stones in bladder can trigger the development of cystitis.