Burning Sensation Continues during urination

  Several months ago, I posted a problem that discussed my 13 year
  old son's problem with burning and irritation on the underside of
  his uncircumcised penis (Under the foreskin). At that time, you
  concurred that a circumcision may be a solution to the problem
  and, as it turned out, the procedure was done and the burning and
  irritation has subsided. Thank you for your help. Having said this,
  I return to you now with news that he has problems further up the
  urinary tract in the area of the bladder (bladder infections were
  also a problem before). The problem is a severe burning sensation.
  Our GP has checked him for infections (negative) and the problem
  continues. Could you please share some ideas that we could suggest
  to our GP to follow up on? Also, could diet/acidity of urine, etc.
  have any link to this? Thanks again for your help!
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Dear Dale,
I am glad that we were able to help you in the past. I hope that what follows will also be useful.
If you son has had urinary tract infections, he certainly needs a urinalysis and work-up for these infections if he has not had one. A work-up involves a renal ultrasound and voiding cystourethrogram (x-ray of his bladder and urethra while urinating an iodine containing solution introduced into his bladder through a catheter).
Diet/acidity are not likely causes of his problem. If his burning is in his pelvis, something there may be happening. He may benefit from a pelvic ultrasound and if bowel symptoms/findings warrant, a barium enema (x-ray of his large intestine).
If nothing objective is found, then consider an emotional cause and obtain a formal evaluation in this regard.
The time may have come when he needs to see a urologist, especially if he has not been evaluated for his urinary tract infections.
This information is provided for general medical information purposes only. Please consult your physician for diagnostic and treatment options pertaining to your specific medical condition. More individualized care is available through our department at the Henry Ford Hospital and its suburban locations (I-800-653-6568).
Good luck!
HFHS M.D.-SAL
*keyword: urinary tract infections, dysuria