Most ureteroscopy patients leave with a ureteral stent — and stents are one of the most uncomfortable parts of stone treatment. Shockwave lithotripsy almost never requires one.
A ureteral stent is a thin, hollow plastic tube placed inside the ureter, the tube that carries urine from the kidney to the bladder. After ureteroscopy — where a scope is passed up through the bladder and ureter to reach the stone — a stent is usually left in place for several days to two weeks. It keeps the ureter open while the swelling from the procedure settles and protects against blockage from stone fragments.
Stents work. But for many patients they are genuinely miserable, and that downside is often under-discussed before a procedure.
The discomfort is well documented. In the validation study for the Ureteral Stent Symptom Questionnaire — the standard tool urologists use to measure this — most patients reported real, daily disruption:
A separate long-term prospective study tracking thousands of stented patients found these symptoms peaked within the first week and that quality of life typically only returned to baseline around two weeks after the stent was removed. In other words, the stent can be a two-to-three-week problem in its own right — on top of the stone.
Shockwave lithotripsy (ESWL) treats the stone from outside the body. Focused sound waves pass through the skin and soft tissue and break the stone into fragments small enough to pass on their own. Nothing is passed up the ureter, so the ureter is not instrumented or traumatized the way it is during ureteroscopy.
Because of that, a stent is usually unnecessary after a standard ESWL treatment. The honest framing: no scope in your ureter, and no stent in the great majority of routine cases. Ureteroscopy, by contrast, typically does require a stent — both because the procedure irritates the ureter and to guard against fragments causing a blockage afterward.
There are exceptions. Some patients undergoing ESWL — for example with a larger stone burden, a solitary kidney, or specific anatomy — may still have a stent placed for safety. We will always tell you in advance whether a stent is part of your plan and why.
If avoiding a stent matters to you, it is worth finding out whether your stone is a good ESWL candidate before defaulting to a procedure that usually includes one. Stent tolerance varies enormously between people — but the data is clear that for a large share of patients, the stent is the part they remember most.
Send your CT or book an evaluation, and we'll tell you honestly whether shockwave lithotripsy is an option for your stone.