The first stage involves internalization of the bladder and closing the abdomen 2nd stage of sx in bladder extrophy? done between age 1 and 2 and involves repairing the epispadias and other genital abnormalities 3rd stage of sx in bladder extrophy? done at around age 3 and involves reconstruction of the urinary tract including the bladder, and other structures of the urinary tract. congenital anom