Hello Thanks for query . You are known to have stone in kidney since long time and now getting hematuria . The hematuria suggests that the stone is spiky and rubbing against the delicate mucus membrane of collecting system . If left untreated it will cause further damage to the kidney and cause more bleeding and infection .I would suggest you to get it removed . Please consult qualified Urologist for clinical examination and get following basic tests done to confirm the diagnosis. 1) Urine routine and culture. 2) Ultrasound scanning of abdomen and pelvis 3) Intravenous Pyelography . Further treatment as regards modality will depend upon the results of findings of these tests Dr.patil.