For about 2 weeks now my anus has been itchy, usually right before and right after a bowel movement, which haven t been very regular those 2 weeks either- mostly thin and feeling like I m not able to get it all out. There was blood on my toilet paper for a few days, not just after bowel movements, but I don t seem to have any hemrroids, and I haven t had any trauma to the area. What could be causing the itching?