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 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: Ans. is 'b' i.e., Painful stress incontinence o Back pressure in posterior urethral valve causes hydronephrosis and distended bladder. o There is thin urinary stream and urinary stasis causes recurrent UTI.