Letting a kidney stone pass

Many kidney stones will pass spontaneously and will not require surgical treatment. Whether a stone can pass successfully primarily depends on the size of the stone. Based on several studies of stone patients, a size criteria of 5mm  or less (about 0.2 inches) is generally felt to predict a reasonable chance (50-70%) for spontaneous passage.

The location of a kidney stone when it is diagnosed also is predictive of likely success at spontaneous passage. Stones that are more distal (closer to the bladder) are more likely to pass than stones that are more proximal (closer to the kidneys).

The decision to allow a stone to pass spontaneously will also take in account the amount of pain you are experiencing, your medical health, the possibility of infection, and other factors. Typically, a period of 4-6 weeks is allowed to give stones a chance to pass.

Medications to help pass kidney stones are now more commonly being given to patients experiencing an active stone episode. These medications can improve the chances of successful passage of a stone, decrease the pain associated with a stone episode, and decrease the time required for passage.

207 Responses to Letting a kidney stone pass

  1. Nandkumar Patule says:

    I have total 3 stones in kidney 3mm,8mm&9mm 2dayes latter 3mm&8mm pass out in by some hydrotherapy & some aurvdic but last one 9mm stone pass from kidney but near blader stone seen in ureter very painful from 3dayes.docter say wait is this pass out pls help

  2. Nandkumar Patule says:

    I have total e stones in kidney 3mm,8mm&9mm 2dayes latter 3mm&8mm pass out in by some hydrotherapy & sine aurvdic but last one 9mm stone pass from kidney but near blader stone in ureter very painful from 3dayes.docter say wait is this pass out old help

  3. Carolin says:

    Omg im trying to pass a 7mm kidney and it’s been the worst experience ever I was admitted on the 30th but they let me go home next day . Soon as I get home I had the worst pain ever the pain medicine don’t even work. I was in tears and puking, even went to the er because my Dr told me to come back if it’s worst but those stupid nurses there are so rude and told me to go back home and to wait 24 hours , I’m in tears and I have to take care of my 2 kids but it’s hard with this pain and I can’t let my hubby miss work and classes all the time :( sorry I just had to vent

  4. BO LANDIRES says:


  5. Kamya mitra says:

    I am having a 5.3mm stone in mid polar region of right kidney since last 1.4 yrs. 1 yr back I had reddish urine which bring me into notice about The stone. Ufologist done CT scan and all tests and said it will pass automatically.

    After that no pain for 1 yr and now I have a BP of 100/180 and while doing USG, I found the stone is still there. Dr. Said all complication is because of that stone.

    Can anyone tell me why the stone not passed even after drinking around 5L water a day and low on oily foods.

    Also do stones increase BP and liver fat?

  6. Donnan says:

    2 years ago I had my first kidney stone. 8 mm. 2 weeks later had a uterescopy with a stent. After surgery it felt like I was pissing razor blades. Horrible pain. The stent was brutal. I made the doctor remove it after a week. Removal was in the office and although it was quick, having a nurse shove a camera up your dick wasn’t fun. Hurt like hell for 10 seconds then was okay. An hour later had horrible flank pain. Next day was good as new.
    About a month ago was on a flight and felt that familiar flank pain. Toughed it out for a few days and finally went to ER. CT scan revealed a 4mm stone. Followed up with urologist and wanted to do another procedure. I said the hell with that and drank water like crazy and took a herbal supplement called stone breaker. 4 weeks later stone passed with hardly any pain. I didn’t even expect it to pass. Just went to the bathroom one morning and there she was.
    My advise…don’t rush to do a procedure. If you can deal with that initial pain and you have a stone under 5mm let nature take its course.

  7. Sonia says:

    I have a 7 mm stone in my bladder and wondering if can be pass out easily or not ?
    Thank you

  8. Niayz says:

    My mother has a 6.7mm stone stuck in her ureter and it’s causing severe pain…. My question is that “Will the stone pass naturally or not??”

    • Bbrownie says:

      That’s right in the “maybe”range. It can be passed – I passed an 8mm a few months ago and a 4mm yesterday.

      It can be done but you cannot be sure- it depends on the shape and if she can handle the possible pain associated in passing it. First off, if it’s near the kidney – that’s hard because it’s got a our no way to go. If it’s in the bladder, it’s a bit better but that’s where you really have to drink and hope it makes its way down.

      At 6mm- you moms age is a factor. Passing a stone isn’t a passive thing, she might be better off doing the laser surgery so she isn’t in pain and you have a definite timeline for recovery- 10 days or so.

      If you attempt to pass it naturally, it might be months.

      • Eric says:

        Hey Bbrownie, i have a 6.4mm stone in my right kidney right now as i speak. With my pain meds I’m not in much pain at all. I take ibuprofen 800 and narco 5. I’m just curious what all did u do to pass a 8mm stone cause that’s incredible and i would love to follow your daily routine to pass my 6.4mm. Cause if u can pass an 8mm stone then i for damn sure should be able to pass a 6.4mm stone. Thanks in advance!

  9. CharlesB says:

    I’ve had a 6.5 mm for since it left my kidney on January 2 (over 5 mos. ago). After tracking it with x-rays all the way down to my bladder, they lost it and as of today believe it is in my prostate or urethra. Apparently when it reaches the bladder you’re typically home free, but mine seems to have gotten hung up. This has resulted in severe burning and pain during urination for past 4 days, and yesterday a small piece (2 x 1 mm) came out. My urologist thinks his time to go look and clear it out, but I’m wondering what I could do to potentially get it to pass. Thanks for any suggestions?

  10. Bilal raza khan says:

    I have 5mm stone in left kidney 2days ago it felt so pain in night but noe feeling good have it has passed or gone back to kidney

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