Most common cause of UTI in young female is ?: (A) Staph saprophyticus, (B) E.coli Klebsiella, (C) Klebsiella, (D) Proteus
Answer is B. Ans. is 'b' i.e., E.coli . E.coli causes 80-90% of acute uncomplicated bacterial lower tract infections (cystitis) in young women.