In women, soreness and swelling in the left back is considered to be caused by kidney stones. Stones tend to grow inside the kidney, and the common symptoms are soreness and vague pain. If the stone is discharged downward may lead to renal colic, the patient’s pain will be very obvious, accompanied by nausea, vomiting, blood in urine, etc. Urological ultrasound or abdominal plain film examination is required. If stones can be found in the left kidney, different treatments should be chosen according to the size of the stones. Stones around 6mm can be excreted by themselves through the ureter by drinking more water and moving up and down, but pain may occur in the left side of the lower back or left lower abdomen during stone removal. If the stone is 1-2cm in size, it is very unlikely to be discharged downward on its own, so extracorporeal lithotripsy or holmium laser lithotripsy under ureteroscopy is needed routinely.