the source will need to be found so you will need to see a medical provider for an examination. it could be a fissure (a tiny tear in the anal area) a hemorrhoid (internal or external) a polyp or?
what may cause blood in the stool? . more importantly what may cause a lot of bright red blood in the toilet after bowel movement and a rather large blood clot? i had to remove myself from the toilet to clean myself and found the blood clot. about the size of a small chicken liver and almost the same consistency. no more bleeding since. bleeding i've experienced before and doesn't concern me but the clot was rather scarey.