Abstract: A method for radiotherapy treatment of a target organ in the vicinity of the rectum in an individual comprises withdrawing the rectum in a dorsal direction to increase a distance between the rectum and the target organ, and administering a therapeutical dose of radiation to the target organ while the rectum is in the withdrawn position. In one embodiment, the target organ is the prostate. A system for use in radiotherapy treatment of a target organ in the vicinity of the rectum in an individual comprises a cylindrical rectal rod adapted for insertion into a rectum of the individual, and a support surface operable to support an individual in a lithotomy position to receive a beam of radiation to the target organ. The system may further include a radiation source for administering a beam of radiation to the target organ of an individual.