Stones can be expelled by drinking plenty of water, ultrasonic lithotripsy or surgical treatment. If the stones in the kidney are relatively small, they can be facilitated to be discharged by drinking a lot of water. If the kidney stone is under 0.5cm, you can usually drink more water, exercise more, and can also be treated with stone pellets under the guidance of your doctor. If the kidney stone is above 0.5cm, it can be crushed by ultrasound to break up the stone and then pass it out through the urine. For relatively serious cases, such as stones larger than 2cm, surgical removal of stones, such as percutaneous nephrolithotripsy, laparoscopic ureterotomy and lithotripsy, can also be performed. Due to the different shapes, sizes and locations of stones, the treatment method and the effect after treatment are also different, so we have to treat patients with kidney stones according to the specific conditions of individuals accordingly. It is recommended that patients with stones should deal with the stones as early as possible, develop the habit of drinking more water and exercising more, eat less food that can promote the formation of stones, and undergo regular checkups.