A member asked:

Would it be painful if urine backed up into the kidneys?

A doctor has provided 1 answer
Dr. George Klauber answered

Specializes in Pediatric Urology

Sometimes not always: Urine backing to kidneys (vesic-ureteral reflux) is not usually painful unless there is a UTI which also affects the kidneys. Occasionally severe reflux can cause sudden back pain with urination. I have even seen an adult patient who sometimes passed out from pain due to urinary reflux.

Answered 6/10/2014

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Does urine retention back up to kidney?

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