Hi, Thanks for writing in. Your urologist will certainly make a diagnosis concerning the pain in right flank and hematuria after having a look at your recent CT scan. A CT scan for kidney stones is a detailed investigation and will show stones even 2 mm in size. It is possible that since you have many stones in the kidney, one or two such stones might leave the kidney and travel down the ureters towards the urinary bladder. In this way, the stones can cause bruising of the ureter and then this causes pain and bleeding which is seen as hematuria. You do not have to live with this kind of pain for a long time. The urologist might decide to insert a double J stent which will make the passage of urine clear of any obstruction and then there will not be any trauma to wall of ureters. This will prevent flank pain and hematuria from happening.