Kidney stones can cause hematuria. The main reason that kidney stones cause hematuria is due to the damage to the mucous membrane of the renal pelvis caused by the stones, and even the rupture of blood vessels, leading to hematuria. In this case, it is necessary to use imaging methods such as color Doppler ultrasound and CT to determine the exact location and size of the stones. If the stone is small, such as about five or six millimeters, symptomatic hemostasis treatment can be conducted, and if necessary, drinking more water, urinating frequently, exercising more, and taking oral stone-discharging granules or effervescents can help expel the stones from the body. If the stone is large, it is advisable to opt for surgical treatment as soon as possible.