Kidney stones are mostly paroxysmal dull pain, and the pain may last from a few minutes to a few minutes or so. In the early stage of kidney stones, if the size is small, most of the clinical symptoms are not obvious, so pay attention to regular review can be done. If the stone is active in the renal calyces, clinical symptoms such as dull pain in the kidney area and hematuria in the naked eye may occur. The pain caused by stones is mainly paroxysmal dull pain, which is related to body position and movement, and the duration is usually from a few minutes to several minutes, but it cannot be generalized. In addition, if a stone falls from the renal calyx and enters the ureter, due to the stimulation of the stone, there may be sudden and severe abdominal pain, manifested as persistent sharp pain, followed by frequent urination, urinary urgency, painful urination, and hematuria in the naked eye, etc. At this time, it is recommended to seek early medical treatment and clear diagnosis through ultrasound and other examination items. If the pain is gradually aggravated or lasts for a long time, it is necessary to go to the urology department of the hospital for treatment as soon as possible to avoid aggravation of the condition.