Hemorrhagic cystitis may be defined as acute or insidious diffuse vesical bleeding. The
potential causes of bladder hemorrhage are numerous and include chemical toxins
(oxazaphosphorine alkylating agents; busulfan; thiotepa; aniline, and toluidine derivatives
such as dyes, insecticides and recreational drugs; turpentine; ether; contraceptive
suppositories; methenamine mandelate, and gentian violet), immune agents (penicillins
and? danazol in angioneurotic edema), radiation (external beam or interstitial), viruses …