I was diagnosed with UC in 2009. I just had a colonoscopy last Wednesday. My biopsy came back as UC and it is Active. He found a new area. I have it in the distal rectum, splenic flexure, and now have it in the cecum. My problem is frustrating. I have extreme pain 3 days after my period starts. I'm not sure the gastro Dr knows what's going on with that. I have been on/off Entocort for the last 3 years with my Lialda. I keep thinking about this: Before I was diagnosed, my Gynocologist did surgery and they did tell me that I had endometriosis. They cleaned it out and that was it. Is it possible that it could be the endometriosis that is causing me all this pain and not the UC?? I read a lot that people with endometriosis have a higher risk for UC and crohns?? Anybody experience something similar??