Hi there! I've only had IBD for about 2 years now and since I've been put on Mesavant, this is my first episode of blood in stools. I can't take my Pentasa, it causes constipation. I honestly don't know if this is a normal part of the disease or if I should see my doctor ASAP. I am in no pain at all and am having moderate normal visits to the bathroom other than the annoying gas I'm dealing with. Any suggestions from those that might be more experienced with IBD?