Shockwave lithotripsy (ESWL)

Diagram of ESWL

Extracorporeal shockwave lithotripsy uses focused sound waves to breakup your stones from outside your body. The advantage of this treatment approach is that instruments may not need to be introduced into your body (unless your stone is large, in which case a stent is usually placed at the time of surgery).

ESWL may be associated with less discomfort than other treatment options such as ureteroscopy or percutaneous nephrolithotripsy. However, ESWL does not usually have as high of a success rate as these other surgical treatment options and is more likely to require re-treatments. For more information on comparing the surgical options for kidney stones, see our comparison chart.

ESWL is easier to perform for stones that are visible on plain x-rays because this type of x-ray is used to target the stones during treatment. For stones that are not visible on plain x-ray, such as uric acid stones, special techniques can be used to allow ESWL to still be used. Stones that are less dense (which can be measured from CT scans) tend to respond better to ESWL than stones that are more dense.

ESWL can be used to treat both stones in the kidney and stones in the ureter. ESWL may not be as effective in patients who are obese because the increased body tissue can make it more difficult to visualize or treat stones.

Fast facts about ESWL:

  • Typical operative time: 1/2 hour
  • Usual hospital stay: No hospital stay, ESWL is outpatient surgery.
  • Average number of days before going back to work: 3.3 days
  • Average number of days before feeling back to normal: 8.1 days

Data regarding return to work and recovery from a study by Pearle and colleagues, Journal of Urology, 2005.

Photo of ESWL table

Photo of a Dornier ESWL table. Treatment head is positioned in the cutout on the right  side of table. The patient’s back would be in contact with the treatment head during a procedure.

Photo of ESWL treatment head closeup

Closeup view of  ESWL machine treatment head.

Xray of ESWL

X-ray image from shockwave lithotripsy procedure prior to initiation of shocks. Large round dark structure on the right of the image is the fluid filled treatment head placed against the patient’s skin to allow transmission of the shockwaves. The surgeon uses the aiming crosshairs to target the shockwaves at the stone to be treated. This patient had a previously placed ureteral stent which can be seen in the left side of the image.

Xray of ESWL after

X-ray image at the end of the same shockwave lithotripsy procedure showing the previously easily seen stones were well fragmented into multiple smaller pieces by the 2,500 shockwaves administered during the procedure.

167 Responses to Shockwave lithotripsy (ESWL)

  1. Niranjan Punja says:


    My mother is having 5 mm stone in kideny, its been already 1 year 7 months, she has used so many tablets and took water but still it didnt go..
    Can she under go the ESWL treatment, because I read so many negatives about this and more chances of diabetes and high blood pressure. Can you please suggest me is it better to have treatment for 4mm stone.. because she is having pain continuously from long time.. kindly suggest.

  2. Charles Corum says:

    My urologist recommended lithotripsy for a 8mm in the lower portion of my left kidney, which has been there for 4-5 years and hasn’t moved. My concern with lithotripsy is reported damage to the pancreas, causing diabetes, and damage to the kidney itself, resulting in high blood pressure. At present, my BP is very low, as is my blood sugar. How great is the potential for damage to the pancreas or the kidney?

  3. salman says:

    i have 10 mm stone.. but doctor did lithotripsy only for 5 min.. is it right ???
    plz help me

  4. Robert says:

    I have a 11 mm stone just barely out of the kidney in the tube leading to bladder
    Scheduled for the lithrotripsy but now alittle worried after reading all the replies on the internet it seems as if no one has any good experiences ???? Can anyone give me any positive reports ?? I heard it is worse the stone is in the tube vs the kidney as I assume it’s because they don’t break up as bad in the tube ?
    I just lost my son to what I believe was simply oversight by doctors and frankly I’m just concerned. Can anyone give me any experience or also advise me what kind of questions I SHOUKD be asking.
    Thank you

  5. Muhammad Afzal says:

    my right kidney has 4mm stone please tell me its treatment

  6. Beatrice Shelton says:

    I am obese and have been told that I am to large to have my stone blasted. It is 8mm and in the upper left quadrant of my right kidney. I asked the doctor what i should aim for in my weight loss but he did not say.. He was the doctor in the hospital and not my reg PCP. Could you help please?

  7. Greg blackwell says:

    I have been using a lithotripsy machine since 1987, I have noticed these blisters do occur it’s not from latex for these machines are latex free, the blisters are from the shock way entering the body it’s not often but it does occur mostly on fair skin individuals nothing to worry about

  8. Dattakumar says:

    Hi, im 29 years old and i have a stone of 10mm in my left kidney. How much it cost to take it out . My number 9177234858

  9. Roy Marshall says:

    I drink about 3 to 4 pots of coffee a day plus work in sun during day in Phoenix AZ and so I get a stone a year usually. Most pass, but today had a 10 mm one blasted.. Everything went well until I 8 hours later I noticed a huge red rash with blisters on my side where they had the X ray head against my skin. I was unaware that the x ray videograph would give enough radiation to cause what I can only think is an X ray burn. Supposedly max radiation should only be in the .8 to 1.2 milli seiverts which is like around a hundred REM or so which shouldn’t do anything. Anyone have any other similar incidents like this. It’s the middle of the night and can’t call the hospital until morning, but is causing some concern

    • M says:

      Are you sure it is because of X-Rays? The flouroscopy they use for localization is quite low radiation…Is it possible you have a rash from say Latex or the cover for the ESWL head where the shockwaves come from? I would check it out. Say taking some strong Anti-histamine…

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