When kidney stones hurt it could be that the stone is falling out, but it is impossible to generalize as individual patients are different. Kidney stones are knots that are present within the kidney. As the stone can move within the kidney, it can manifest as pain when it falls downward to the outlet of the ureter or renal pelvis. In addition, renal colic can also result if the stone stays in certain narrow areas. Patients may also be accompanied by symptoms such as hematuria, nausea, vomiting, irritability and abdominal distension. Therefore, kidney stones are not necessarily falling when they hurt. A few stones may be complicated with urinary tract infection, which may present symptoms such as chills and fever. To summarize, once patients are diagnosed with kidney stones, they need to go to regular hospitals and take relevant treatment measures under the guidance of doctors. In daily life, you need to drink more water to promote the discharge of stones from the body. If you are physically able to do so, you should exercise properly, maintain a healthy weight, and have a regular routine.