<human>: Hi, may I answer your health queries right now ?  Please type your query here... Sir I underwent a surgery during 2002 for PUJ obstruction on right side in AIIMS, every thing went right. Now some times I feel some mild pain(akdan) in my back during sleep in night. I also got the ultra sound and obstruction was not there.
<bot>: Dear patient Since recent ultrasound and was normal you need not worry about renal calculus and obstruction.  Mild back pain may be due to muscular origin. I would like to advise radiograph of lumbosacral spine anteroposterior and lateral views to be sure there is no bony pathology.  Start tab diclofenac plus thiocolchicoside combination twice a day for pain relief.  Do stretch of back before getting out from bed. All the best