Authors: Ivana Lutchman / Editor: Steve Corry-Bass / Reviewer: Ciaran Mackle / Codes: ELP7, SLO1, UP3 / Published: 14/01/2023

An elderly gentleman presents to the emergency department (ED) with increasing frequency of nocturnal enuresis.

He has no suprapubic discomfort, dysuria, fevers, rigors or night sweats. He usually gets up 3-4 times each night to urinate, but does not complain of poor flow. His past medical history is significant for urinary tract infections. He is otherwise well.

He is incidentally found to be in urinary retention with a large volume found on bladder scan. Renal ultrasound shows bilateral hydronephrosis and hydroureter. He is immediately catheterised and 2500ml of urine initially drained.

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