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Doctor insights on: What Is The Actual Size Of Kidney Stones

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What is the actual size of kidney stones?

What is the actual size of kidney stones?

It varies: Stones can be anywhere from a millimeter (1/25 of an inch) up to a staghorn stone that fills the kidney an could measure 8-9 centimeters in size (several inches across). ...Read more

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Dr. Sanjiv Kaul
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 you reduce the size of kidney stones before they break loose?

Can you reduce the size of kidney stones before they break loose?

No: The answer to stones is to know what sort it is. Commonest stone is calcium oxalate and it can be prevented by taking magnesium. Once the stone has formed it can only be either passed or removed surgically. ...Read more

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I have stage three kidney disease. Have been passing small black masses the size of kidney stones but cannot be analyzed. Dr. Has no clue. Any ideas?

I have stage three kidney disease. Have been passing small black masses the size of kidney stones but cannot be analyzed. Dr. Has no clue. Any ideas?

Collect them: The small black masses could be clots, fungal balls, tumors, tissue from the urinary system. I suspect that stone analysis did not look at these other possibliities. Suggest submitting them to pathology for evaluation with a history and specific question. ...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 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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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

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