An enema adapter attaches to a plurality of bottles, shower hoses, or water hoses as the fluid storage vessel or fluid source for body cavity flushing applications, such as enema, douching, or similar applications. The enema adapter directs the flow of water from the into the body cavity for medical or hygienic needs. The enema adapter includes discharge nozzle, a first mounting adapter, at least one discharge opening, and a nozzle cap. The discharge nozzle focuses and directs fluid flow from a fluid reservoir out through the at least one discharge opening into the user's body cavity. The discharge nozzle attaches to the first mounting adapter. The first mounting adapter secures the enema adapter to the fluid reservoir.