an enema tip retention apparatus for retaining an inserted enema tip in a patient during the administering of an enema to the patient includes an adjustable belt for encompassing the waist of the patient and including depending straps which couple to a substantially flat mounting plate . the mounting plate has a clamp disposed thereon and a clearance aperture therethrough and includes two collar buttons which are arranged for connection to the two depending straps . the clamp has a ratcheted arrangement such that its clearance aperture diameter may be varied , depending upon the enema tube outside diameter which is inserted therethrough . with the depending straps coupled to the collar buttons , the mounting plate may be drawn adjacent the rectal opening of the patient and with the enema tip and tube anchored by the clamp , this tip and tube may be held in position throughout a fluoroscopy examination and will be retained in its desired position , regardless of the movements and the maneuvers the patient is subjected to .