<s>[INST] i had a kidney stone that was treated with lithotripsy back in March. I ve been fine since. Never saw any stones pass and no pain. Just couple of days ago I started feeling pain and now have blood in urine. Could this be related to the kidney stone? [/INST] Good Day, and thank you for being with Chat Doctor ! You may have developed another stone and passed it out. If your symptoms persist I would go back to your urologist or go to the ER to get some tests done. I'm the meantime Chat Doctor.  I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications at: http://www.ChatDoctor .com/doctors/ </s>