Kidney stones, as the name suggests, is a disease that affects the normal function of the kidneys by the presence of stones in the kidneys, and people who have kidney stones are suffering. So what are the symptoms of kidney stones? Here we give you an introduction, after understanding, you will know more about loving your kidney. 1, asymptomatic: most of the kidney calcium stones, physical examination line ultrasound examination found, urine examination negative or a small amount of red and white blood cells. 2, dull pain in the back: mostly for larger stones in the renal pelvis such as cast stones, there may be hematuria after strenuous exercise. 3, renal colic is often smaller stones, with microscopic or carnal hematuria, and obvious percussion pain in the kidney area. During the pain attack, the patient has pale face, cold sweat, rapid and weak pulse and even decreased blood pressure, often accompanied by gastrointestinal symptoms such as nausea, vomiting and abdominal distension. 4. History of stone discharge: During painful and hematuric episodes, sand or small stones may be discharged with urine. When the stone passes through the urethra, there is a blockage of urine flow and a tingling sensation in the urethra, and after the stone is discharged, the urine flow is immediately restored and the patient feels relaxed and comfortable. 5. Infection symptoms: pus urine may appear when combined with infection, and acute attacks may include chills, fever, back pain, urinary frequency, urinary urgency and pain. 6, renal insufficiency: obstruction caused by kidney stones on one side may cause hydronephrosis and progressive renal hypofunction on that side; obstruction caused by bilateral kidney stones or isolated kidney stones may develop into uremia. 7, urinary closure: bilateral kidney stones cause obstruction on both sides of the urinary tract, isolated kidney or the only functional kidney stone obstruction can occur urinary closure, one side of the kidney stone obstruction, the opposite side can occur reflex urinary closure. 8, lumbar mass: when stone obstruction causes severe hydronephrosis, a mass can be found in the waist or upper abdomen. The kidney is a very important organ for people, once the kidney in addition to the problem, then the other functions of people will also be affected, so we must pay attention to the kidney stones, return to the kidney stones, must be timely treatment, otherwise the stones will only grow bigger and bigger, increasing the burden on the kidneys, the patient himself is not good.