Kidney stones aren’t smooth, they are crystals with a bunch of pointy and sharp edges. As they pass through the ureter they scrape and cut as they go and this is very painful.
The Ureter has a very small diameter so stones don’t have to be large for them to cause a problem.
They also block the flow of urine causing pressure, and they cause muscle spasms because the kidneys and bladder are trying to clear themselves.
Kidney stones aren’t smooth, they are crystals with a bunch of pointy and sharp edges. As they pass through the ureter they scrape and cut as they go and this is very painful.
The Ureter has a very small diameter so stones don’t have to be large for them to cause a problem.
They also block the flow of urine causing pressure, and they cause muscle spasms because the kidneys and bladder are trying to clear themselves.
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