How many kidney stones can be removed?

Usually kidney stones less than 4mm in diameter can be discharged.

Kidney stones less than 4mm in diameter are relatively small and are relatively easy to pass through the urinary tract. The urinary tract includes the renal calyx, ureter, bladder and urethra. The ureter is a place where obstacles are easy to occur. Stones less than 4mm in diameter can generally be discharged through the ureter, so they are relatively easy to pass out of the body. In addition, urine excretion depends on the flow of urine, patients need to maintain adequate drinking water and develop good urination habits, help to increase the fluidity of urine, thus helping the smooth excretion of stones.