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Doctor insights on: Size Of Passable Kidney Stones

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Dr. Neigatha Graney
64 doctors shared insights

Kidney Stones (Definition)

Seriously- renal stones are the result of postive and negatively charged particles in urine binding together and precipitating as solids- most frequently as calcium- oxalate. This happens most often when the urine is concentrated- ie when you are dehydrated. And trying to pass these stones from the kidney to the bladder is incredibly painful. ...Read more


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Can 6mm size kidney stone pass through urine?

Can 6mm size kidney stone pass through urine?

Probably: Kidney stones come in many sizes and shapes. 6 mm is not very large and should eventually pass. Straining urine with kitchen strainer every voiding should eventually catch the stone which likely will look like a blood clot. It can get hung up in the ureter causing significant pain. There are ways to get it out if trouble passing, see urologist for that. ...Read more

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10mm and 9mm kidney stones are normal size stones?

10mm and 9mm kidney stones are normal size stones?

Normal?: What is normal size stone? Normal is not to have kidney stone. 9-10 mm stone is called large since we do not expect that stones in this range can pass spontaneously and needs interventions such as lithotripsy. Please talk to a urologist. ...Read more

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How do doctors determine the size of a kidney stone?

How do doctors determine the size of a kidney stone?

Kidney stones: can be seen and measured on a plain abdominal x-ray, kidney ultrasound, or abdominal CT scan. The most accurate measurements come from CT scan. When a kidney stone is small, it can be passed naturally (although usually painfully). When the stone is large, it may need to be broken up with ultrasound (lithotripsy) or retrieved by a urologist through the urethra. ...Read more

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Which size kidney stone can be passed without surgery?

Which size kidney stone can be passed without surgery?

Smaller is better: In one large study the passage rate was 78% for stones measuring 1 to 4 mm, 60% for those 5 to7 mm, and 39% for those 8 mm or larger. ...Read more

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I have a 14mm kidney stone without hydronephrosis. Is it passable?

I have a 14mm kidney stone without hydronephrosis. Is it passable?

No: A 14 mm stone in the kidney will not pass.Too big to go down ureter.No hydronephrosis because it is not at the point where the ureter joins the renal pelvis(called UPJ for ureteropelvic junction) where it would block drainage & cause hydronephrosis. Please get it taken care of because it will give you trouble. I am not going into treatment options but please get treatment.Good luck. ...Read more

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Is there a specific classification of "disease" for a person that has chronic kidney stones? (i develop an average of 30+ yearly sizes 2mm to 10mm.)

Is there a specific classification of "disease" for a person that has chronic kidney stones? (i develop an average of 30+ yearly sizes 2mm to 10mm.)

Kidney stones: Those who form stones could have a metabolic disorder allowing the to form. A full workup with either a urologist or a nephrologist could determine if there is underlying disease as the cause. ...Read more

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Kidney stone of 12mm size?

Kidney stone of 12mm size?

Yeah, that's big.: A stone up to 5mm in size will predictably pass, with variable degrees of pain. A 12mm stone is going to get stuck if it decides to move out of the kidney. You should get that stone managed before it starts to move. ...Read more

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Can kidney stone of 8mm size cause rise in bp.

Can kidney stone of 8mm size cause rise in bp.

Yes If obstructing : If its an obstructing renal stone causing hydronephrosis, urinary collecting system dilatation, you are most likely also have associated symptoms of flank pain possibly radiating to the groin, +/- fever and blood tinged urine.The stone and the pain associated with it can cause your pressure to rise. BP will fall back to baseline when the stone passes and the pain resolves.No if it's not obstructing. ...Read more

Kidney (Definition)

The kidneys are paired organs that lie on either side of the vertebral column. Part of their critical functions include the excretion of urine and removal of nitrogenous wastes products from the blood. They regulate acid-base, electrolyte, fluid balance and blood pressure. Through hormonal signals, the kidneys control the ...Read more


Kidney Stone (Definition)

Solutes precipitate and combine to form stones formed of calcium oxalate usually around a nidus of uric acid. Other solutes that form stones are ca and mg phosphates, cystine, and uric acid staghorn calculi form in the presence of chronic urinary tract infections. Stones can be painful, may require ...Read more