Bladder exstrophy is a bladder that is not formed right. In most cases, the bladder and genitals are split in half, are turned inside out and sit outside the body. Seattle Children’s pioneered repairing this condition with a single surgery. There are many kinds of exstrophy. A less severe form (epispadias) affects the tube that carries urine from the bladder to the outside of the body (urethra). A more severe form (cloacal exstrophy) affects the urethra, bladder, genitals and bowel. Read more.