Urinary Reflux Diagrams
Urinary Reflux Diagrams
A series of diagrams showing the different stages of reflux.
Urinary reflux stages
There are different degrees of severity of urinary reflux, graded from 1 to 5. Grade 1 is the mildest form, while grade 5 is the most severe.
Normal urinary tract
Grade 1 urinary reflux
Urine refluxes part-way up the ureter.
Grade 2 urinary reflux
Urine refluxes all the way up the ureter.
Grade 3 urinary reflux
Urine refluxes all the way up the ureter with some widening of the ureter and the part of the kidney where urine collects (calyces).
Grade 4 urinary reflux
Urine refluxes all the way up the ureter with a marked widening of the ureter and the part of the kidney where urine collects.
Grade 5 urinary reflux
Reflux of large amounts of urine up the ureter. Marked twisting and widening of the ureter and the part of the kidney where urine collects.
This page last reviewed 28 October 2021.
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