This is a bit embarrasing for me so here goes, I m a 28 y/o male in good physical shape and health. I noticed the other day that when I went to the bathroom I felt something a bit scratchy and irritating while I was having a bowel movement. After words, I noticed blood on the toilet paper and in the water. I only notice then when I am using the bathroom only though. I have no pain outside of that though. I used a mirror to try and find any abnormalies and could find nothing on the outside. Is this something that is imperative that I need to see my physician about? I am just a bit uncomfortable about having a rectal exam. Any advice or oppinions would be greatly appreciated and I appologize for the graphic nature of my question.