What Causes Bright Red Spotting While Passing Stool?

Hi, I ve just gone to the washroom, and there was some red leaking out of my stool (kind of like the blood I d normally see for my period). I did not notice any red on the toilet paper though. The red was fairly bright. I also tried to think of what I ve eaten, like beets that could have coloured it, but I haven t had anything particularly colourful. I m not in any pain, and there is no itching or burning. I feel completely normal right now. This is the first time I ve noticed this in my stool.