Riding a roller coaster can theoretically accelerate kidney stone expulsion because it can increase the gravitational stone expulsion effect and therefore promote stone expulsion, but in principle, it is not recommended for patients to ride a roller coaster for stone expulsion. Normal running, skipping and jumping can promote stone discharge, and stone discharge requires the action of multiple factors. Firstly, a certain amount of urine needs to be maintained to discharge the stones into the ureter through the action of urine flushing and carrying, and then the stones are gradually discharged into the bladder by way of ureteral peristalsis. Secondly, the patient needs to have a small stone volume present, if the stone volume is too large, it cannot be excreted through the ureter. In principle, any kidney stone under 6 mm can pass through the ureter and enter the bladder and be expelled from the body. If the stone is larger than 1 cm, it will not enter the ureter and will need to be treated with extracorporeal shock wave lithotripsy to break up the stone and reduce its size before excreting it. Then there is a lot of exercise, such as running, jumping, skipping, etc. This effect is to increase the effect of gravitational stone removal and promote the discharge of stones, so theoretically riding a roller coaster may also accelerate the discharge of kidney stones.