Colonoscopy was done with a big polyp high dysplasia that was removed followed by two clear colonoscopies after 6 months and one year . why do i still have rectal bleeding upon defecating occasionally ?

Rectal bleeding: Polyps have the adenoma Benign or pre-cancerous tumor which can become a colon cancer in 20% or more of polyps large is a pile up the more likely it is to turn into cancer dysplasia is pre-cancerous. Rectal bleeding can have serious causes like cancer bleeding disorder inflammatory bowel disease. And annoying but Usually not life-threateningconditions like hemorrhoids an anal Fissure