Changes

The human penis is made up of three columns of tissue: two corpora cavernosa lie next to each other on the dorsal side and one corpus spongiosum lies between them on the ventral side. The urethra passes through the corpus spongiosum near the ventral surface of the [[penis ]] shaft. Occasionally, during a [[circumcision ]] mishap, the urethra is opened on the ventral surface to create the urethrocutaneous fistula.