Bladder stones can move within the body, and since the bladder has a relatively large capacity, the movement of the stones can cause friction against the bladder's mucous membrane, leading to pain in patients, accompanied by symptoms of gross hematuria. Once bladder stones are diagnosed, it is necessary to seek prompt treatment at a local hospital's urology department. Treatment plans are made based on the specific size of the stones, observed through ultrasonography of the urinary system.