<prompt> Most frequent causes of acute retention of urine include all exceptMeatal ulcer with scabbing in childrenHaemorrhoidectomyHerniorraphyFecal impaction  <response>: Most frequent causes of Acute Urinary Retention Male Female BothMales and females Bladder outlet obstructionMC Urethral stricture Acute urethritis or prostatitis Phimosis Retroveed gravid Uterus Bladder neck obstruction MC Blood Clot Urethral calculus Rupture of urethra Neurogenic injury or disease of the spinal cord Smooth muscle cell dysfunction associated with ageing Fecal impaction Anal pain Hemorrhoidectomy Intensive post operative analgesic treatment Some drugs Spinal anaesthesia Ref: Bailey and love 27th edition Pgno : 1426 