The discharge of 5mm kidney stones is related to four major factors, and its treatment is as follows: 1, the location of kidney stones: the biggest influencing factor, there are many rooms for kidney stones, the hall for the renal pelvis, several calendars called the upper, middle and lower calendars, if the stones are in the renal pelvis or upper calendars, discharge is easier, if the stones are in the middle calendars, it is more difficult. If the stone is in the lower calyces, it is almost impossible to discharge. Patients can exercise upside down, upside down every day, the stone can run from the lower calyces to the renal pelvis and then discharged; 2. Smoothness of the stone surface: if the kidney stone is smooth, like a pebble, it is easy to discharge, if it is rough and angular, it is more difficult to discharge; 3. Urine volume: because the stone is discharged through urine, if you drink enough water and urine, it is easy to discharge. If you do not drink water, the amount of urine is very little, and the probability of discharge is low; 4. Exercise: if you do exercise regularly, especially jumping exercise, the stones will be easily discharged, if you stay in bed for too long, the probability of discharge of stones is very low.