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There are several disorders of the ureter that are congenital (from birth). An example of this is a duplicate ureter, where there is an extra ureter running from a kidney to the bladder. Uterocele is a narrowing of the ureter which could cause urine to back up into the kidneys and damage the kidney. This is usually caused by a small tumor or hernia. A kidney stone might pass into the ureter causing blockage and a lot of pain!

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14y ago

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