I have been prescribed isotretinoin capsules for 2 weeks, twice daily, for my acne. Since I started taking the medicines a few days later I started having problems with my bowel movement with which I mean I have all of a sudden started having difficulty in pooping and I bled a bit while pooping. For the record I have never had hemorrhoids or anal fissures but I symptoms felt like that and now am scared and worried, whether it is the side effect of my medication or am I really sick.