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Doctor insights on: How Big Is A 4 Millimeter Kidney Stone

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Kidney stone of 8.9 mm at uretrovesical junction. No obstructive uropathy. Been there for four weeks, is there any dangers continuing with medication?

Kidney stone of 8.9 mm at uretrovesical junction. No obstructive uropathy. Been there for four weeks, is there any dangers continuing with medication?

Possible: 9 mm stone at the ureterovesicle junction has about 10% chance of passage. That junction can be the most difficult to pass through. As long as there is no hydronephrosis, it may be safe to continue trying to pass it. However, long term obstruction can affect kidney function. Also, silent obstruction can occur and result in renal damage. ...Read more

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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


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How big is a 4mm kidney stone?

How big is a 4mm kidney stone?

About: It is a little larger than 1/8 of an inch. ...Read more

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Is a 5 mm kidney stone considered big or small?

Borderline: Small enough to possibly pass on its own (usual case), too large if it gets stuck ; requires medical intervention. Good luck! . ...Read more

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What happens when a kidney stone is too big to pass?

What happens when a kidney stone is too big to pass?

Kidney Boulder: Your doctor may recommend a procedure called extracorporeal shock wave lithotripsy (swl). Swl uses sound waves to create strong vibrations (shock waves) that break the stones into tiny pieces that can be passed in your urine. If that doesn't work then the stone can be surgically removed using small telescopes and instruments inserted through a small incision in your back. ...Read more

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How big does a kidney stone need to be before I get a shockwave?

How big does a kidney stone need to be before I get a shockwave?

Depend...: Shockwave rx (eswl) for urinary stone is advised for less than some 1.5 cm. But the stone density and past response to eswl may sway this fix rule. Besides, the frequency of using eswl has change and evolved over the past 10-15 yrs due to the availability of fine, smaller instruments coupling with the best-ever optical visualization, resulting in some 65% of stones. .. By scope, not eswl today. ...Read more

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What would happen if a kidney stone was too big to pass but it went untreated?

What would happen if a kidney stone was too big to pass but it went untreated?

Depends: A large kidney stone that does not pass may obstruct the flow of urine from the kidney to the bladder, causing the "urine collecting system" of the kidney to dilate or expand. If this happens for a prolonged period, damage to the kidney may result, decreasing its overall function. Stones more than 5 mm may need treatment and should be addressed by a urologist. ...Read more

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How do I tell when I've passed a kidney stone? Will I see a big thing in toilet?

How do I tell when I've passed a kidney stone? Will I see a big thing in toilet?

Pain reief, see stone: Reief comes when a painful kidney stone is no longer obstructing & has likely reached the bladder. Stones small enough to reach bladder, usually 6mm or smaller are then small enough to exit when you urinate. Often can be felt passing thru urethra. It can be caught if you filter your urine or can be seen in toilet bowl. It will be small, often only 2-4 mm in diam., even if it felt like a rock. ...Read more

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Have got kidney stone measuring 0.5mm. Is it big size as the pain keeps coming and going on my side. Is the size big to worry of?

Have got kidney stone measuring 0.5mm. Is it big size as the pain keeps coming and going on my side. Is the size big to worry of?

Small ones are more: Likely to induce pain. Why? Because stone surfaces are composed of crystals with sharp surgaces plus ureters are typcally both very sensitive to irritation & constrict in response to pain, thus visious cycle. Big stones in renal pelvis do not readily enter ureters. Small stones more easily pass into ureters. Always catch stone to identify which of 4 types with goal to help prevent recurrances. ...Read more

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Is 2-3mm considered to be a big kidney stone and can it pass without you knowing it?

Not big: A 2-3 mm kidney stone is not considered large but still can cause a tremendous amount of pain. These smaller stones will usually pass. It is stones over 3mm that may need help passing although even some larger stones will pass on their own as well. ...Read more

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Nonobstructing kidney stone measuring 0.7 cm. Is that too big to pass or will I need surgery?

Nonobstructing kidney stone measuring 0.7 cm. Is that too big to pass or will I need surgery?

Lithotripsy: The stone may be too big pass on its own. Discuss with your doctor if you may be a candidate for lithotripsy. The procedure uses sound waves to break up the stone so that the fragments may pass in the urine. ...Read more

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What are the options to remove a kidney stone if it is as big as a crab apple?

Multiple: If a large stone is in the kidney, the urologist may recommend a percutaneous nephrolithotomy (pnl) where the stone is blasted with an energy device that is inserted through a small incision in the flank. Some stones 2, . 5cm or less would respond the shock wave therapy. Also, a ureteroscopy could be performed, with the understanding that the patient may need additional procedures to be stone free. ...Read more

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I'm a dude I have a kidney stone its 2mm big. Can I masterbate with it in me, its still passing? Will it hurt if I do masterbate before it passes?

Should Be OK: Masterbation should have no effect on the stone passing down the ureter. If it helps to relieve congestion of the prostate gland (the source of much of the ejaculate fluid), then passage through the prostatic urethra might be a little easier. ...Read more

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12 mm kidney stone lipotripsy didn't work want to do a pcnl anyway of passing the stone when is it to big for my kidney. Grew from a 8 mm two years ago?

12 mm kidney stone lipotripsy didn't work want to do a pcnl anyway of passing the stone when is it to big for my kidney. Grew from a 8 mm two years ago?

No.: Unfortunately stones more than 5mm cannot usually pass on their own, so intervention is often needed. If lithotripsy did not work, then percutaneous therapy may be needed. ...Read more

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Is there anyway you can find out how big a kidney stone is without going to the doctor?

Is there anyway you can find out how big a kidney stone is without going to the doctor?

See answer: The size of a kidney or ureteral stone can only be determined by an imaging study: ct scan, kub, and renal ultrasound are the most commonly used imaging studies. Ct: most accurate study for detecting the presence of a stone in kidney or ureter. If the stone is visualized on kub, this is the most accurate for correct size. Renal ultrasound: least commonly used and not best for ureteral stones. ...Read more

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What to do if I have severe pains under my rib cage in my back. Could this be a big kidney stone?

Possibly: Stone pain is usually depends upon presence of blockege. There are also other causes of such back pain, i.E spinal disc, muscular, aortic anurism, pancreatitis etc. Best to consult your dr., or go to an er if pain is very severe. ...Read more

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Can kidney stone kill a person? And can an four year old get kidney stone and gallbladder stones?

Can kidney stone kill a person? And can an four year old get kidney stone and gallbladder stones?

Yes to all: This sounds like a very serious situation and this child needs to be under the care of a competent pediatric urologist to find the cause of the kidney stone. Gallstones can be lethal as well; in a child, the workup should include a check for ongoing hemolysis, even low-level. ...Read more

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Monthsago had surgery to remove kidney stone and still get foam in my urine. Especially when I hold it. Is that normal? (big mocha+caffiene drinker)

Monthsago had surgery to remove kidney stone and still get foam in my urine. Especially when I hold it. Is that normal? (big mocha+caffiene drinker)

Unrelated: What you are seeing is likely normal. Passing foamy urine now and then is normal, for the speed of urination and other factors can influence this. But you should see your doctor if you have persistently foamy urine that becomes more noticeable over time. This can be a sign of protein in your urine (proteinuria), which requires further evaluation. ...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