If the color of the urine discharged after kidney stone surgery is dark red, it may be that the intraoperative bleeding is now discharged from the body and belongs to old bleeding, this is not too big a problem. Usually pay attention to the color of urine, try to rest in bed and walk less, drink more water will soon return to normal. However, if the color of urine is red or persistent, it is possible that the stent tube left in the surgery stimulates and damages the bladder mucosa, causing the bladder to bleed and causing the red urine phenomenon, it is recommended to drink more water and move less. In addition, red urine after kidney stone surgery may also be a phenomenon of red urine caused by the stimulation of stones left after surgery. If the hematuria is heavy, you can go to the hospital to review the urological ultrasound, urinary routine, blood routine and other tests to clarify the specific cause and then treat it under the guidance of the doctor. After stone surgery, you should drink more water, not less than 2000ml of water per day, appropriate activities and pay attention to rest.