This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Which is not a feature of the posterior urethral valve – 
Select and explain. 
A. Palpable bladder, B. Painful stress incontinence, C. Recurrent UTI, D. Hydronephrosis
B: Painful stress incontinence
Answer: B: Painful stress incontinence 
Explanation: Back pressure in posterior urethral valve causes hydronephrosis and distended bladder.
There is thin urinary stream and urinary stasis causes recurrent UM.