### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi,I have a history of kidney stones that has been dormant for more than 20 years. I was diagnosed in July of this year with multiple stones in my left kidney and in October one of the larger stones moved into my ureter and got stuck. Three weeks ago I had a procedure uroscopy with laser to remove the big stones and had a stent placed for a week. This week I had sharp pain in my left side and passed a small stone a day later. I also had an ultrasound which showed moderate hydronephrosis without total blockage, echogenic foci calculi with a reading of non acute calculus.I am still having pain after passing the stone and my urologist wants me to have a CT scan if the pain does not go away.  I am 57 54 and weigh 155. Not sure if this will resolve on its own. Thinking maybe a stone is stuck again in my ureter. Any help would be appreciated.

### output:

HelloThanks for query. You have large stone impacted in ureter and had undergone endoscopic fragmentation of stone with lessor and DJ stenting Subsequently stent was removed after a week. Now you have pain in abdomen. The pain could be either of the two reasons 1) Inflammation and infection of the ureter (Urethritis) secondary to surgical procedure and foreign body reaction to stent or 2) Residual stone left over adventurously getting impacted in ureter and causing HY Chat Doctor. Get Ultrasound Scanning of the abdomen done to rule out the same. Further treatment will depend upon result of these tests and final diagnosis. If it does not pass down spontaneously with expectant line of treatment and if you have severe pain you may need to put the stent again.