Can ureteral calculi cause hydronephrosis?

Ureteral stones can cause hydronephrosis. The lumen of the ureter is generally narrow. Stones often cause obstruction of the ureter lumen, so that urine in the renal pelvis is blocked, resulting in increased pressure in the renal pelvis, which will show hydronephrosis. For patients with incomplete obstruction, the general clinical symptoms are not obvious, hydronephrosis is persistent progression, and the course of disease is slow. If acute complete obstruction causes hydronephrosis, patients may show clinical symptoms such as renal colic. If the stone can be removed early lithotripsy treatment, lift obstruction, hydronephrosis can be quickly improved, and can prevent renal function damage.