Renal stone paroxysm may be caused by ureteral obstruction when the stone is discharged into the ureter, hydronephrosis, secondary infection of renal stone, and injury of ureteral mucosa.
1. Ureteral obstruction and hydronephrosis: patients with renal calculi have obstruction of the opening of the ureter due to excessive pressure in the renal pelvis and calyces, or hydronephrosis due to obstruction caused by stones falling into the ureter, which stimulates the smooth muscle of the ureter and causes spasmodic colic.
2. Kidney stone secondary infection: if kidney stone secondary infection, pyelonephritis will aggravate back pain, accompanied by fever and chills, urinary frequency and urgency, urinary pain and hematuria.
3. Ureteral mucosal injury: kidney stone patients when the stone from the urinary tract up to the lower process, causing ureteral mucosal injury triggered ureteral spasm and pain.
If there is a kidney stone paroxysm, it is recommended to go to the hospital in time.