Could passage of kidney stones damage/scar ureters?
Patient: I am 48 years old and have had kidney stones since I was 19.  I just recently had lithrotripsy to take care of a 14 mm stone.  Sometimes I can feel them pass, sometimes I cannot.  Does this mean my ureters are damaged or scarred?  Also, how many CT scans are too many.  I seem to average about 4 a year.  Also, I have already had a parathyroidectomy and watch my diet.  Any ideas? Doctor: Hello and welcome to HCM.As an Urologist, let me advise you, that as a stone former, you need CT- scan (plain), once a year. ESWL is ideal for kidney stones upto 2.5 cms size. Stones above 1 cm size or causing pain need treatment.The fragments do no harm to ureter.  If stent is placed,(optional only),it can injure the ureter.  Drink 12-15 glasses liquids daily.You should be more careful after para-thyroidectomy, as small stones need no treatment.  You must have done blood calcium,phosphorus, and uric acid.You're welcome to send a copy of your reports, with last CT, here, in my name, for an expert opinion.    Get well soon.