As truly benign as it sounds, most X-ray dreams seem to reflect a desire for inner knowledge concerning the dreamer or someone with whom the dreamer has an ongoing relationship. We often think that life would be better if we knew what made others tick. X-ray dreams often reveal the desire to know more of the inner self.
Another scenario is medical. If you have not been feeling well lately, but do not seem genuinely sick, you may dream of X-rays in a desire to resolve uneasiness about your health. Many times, our minds will go searching for solutions to waking problems through dreams. In the case of health, this would mean typical medical associations.