Hello, I am currently taking the pill in three monthly cycles to calm symptoms whilst I finish my last year of uni as the dr believes endo could have spread to my bowels. During my break I've had the usual stabbing pains that go up the rectum but yesterday I went to the loo and bright red blood filled the toilet. I do not have piles or anything like that, does anyone know if this could be endo related? I often have cyclical bowel/rectal pain but I have never experienced this before. many thanks!