What causes kidney stone pain?

Kidney stone is a common disease in urology. Pain is a common symptom in patients with kidney stones. The cause is renal pelvis obstruction caused by stones. Normal manifestations are soreness and dull pain in the waist. If the stones move to block the kidney outlet, it will cause acute obstruction of the upper urinary tract. The sudden increase in pressure in the renal pelvis will cause renal colic. The main manifestation is sudden severe pain in the waist or upper abdomen, radiating to the ipsilateral lower abdomen and groin along the ureter. The pain symptoms are paroxysmal and can be relieved intermittently, accompanied by nausea, vomiting, hematuria, etc. The pain degree of kidney stones depends on the size and position of the stones. Large stones move less in the renal pelvis or renal calyx, but the pain is lighter, showing dull pain or dull pain, but also painless. Small stones move more in the kidney and sometimes cause severe renal colic.