Is colorectal cancer transmittable?
Patient: I have a friend who had/has colo/re tal cancer.  His markers were 3 for a while and has since had a 5 reading and now a 4.  We are not intimate at this time but I was curious, and I know this sound ignorant, but can you pass it in some way to another?  Saliva, sex, etc. Doctor: No, colo-rectal cancer is not transmitted for one person to other through sexual inter-course, saliva or body secretions.I hope your query has been answered.