Kidney stones may present with symptoms such as pain, hematuria, stone removal, and urinary tract infection. 1. Pain: As the stone may rub the kidney tissue, it may cause dull pain in the kidney, severe renal colic may occur, and may be accompanied by nausea, vomiting and other symptoms. 2. Hematuria: the stone may damage the mucous membrane of the renal pelvis and calyx, or cause mucous membrane damage when it moves to the ureter, which may lead to hematuria, most of which is microscopic hematuria, and the urine routine may be positive for occult blood in the urine, and a few of them may have carnal hematuria, in which the urine is red in color. 3. Lithotripsy: some people can find tiny stones discharged in the urine, and small stones can be found after urine precipitation. 4. Urinary tract infection: Kidney stones may cause urinary tract infection, resulting in symptoms such as frequent urination, urgency, painful urination and fever. When there are suspected kidney stone symptoms, the cause should be clarified under the guidance of the doctor and actively treated.