question: Hi, I had a colonoscopy 4 weeks ago with no issues, except that as soon as I urinated after the procedure I passed blood, and then a couple of days later and since, I ve had blood in my sperm. I ve had urine tests and ultra sound on bladder and kidneys, but the blood still is present in the sperm. I m presuming the prostate was damaged in the colonoscopy. I also had a heamorhoid banded during the procedure. Can the prostate be damaged in this procedure, and how? By prostate was mildly emlarged. Thankyou, John