what is c-disc-colitis-I have diahrrea, & lower abdominal pain , I am 66 years old, female, w/RA. I have been taking Embrel for the RA. I had knee surgery on March 10, 2011, my doctor thought this problem arose from the anesthesia. He said they put antibiotic in the anesthesia, and sometimes it causes this problem. When they received the results of my blood test, the found my white blood cell count was 18, they now think it is c-disc-colitis. I have never heard of that before. Ive heard of colitis, but not c-disc-colitis