The only way to accurately diagnose either UC or Crohn's is with a colonoscopy and biopsies. It's possible to have UC without blood, it's also possible for either Crohn's or IBS to cause pain and constipation. It would be irresponsible for us to guess what is wrong with you. You really do need to see a doctor and follow through with the scope. Is it the procedure you're afraid of or the diagnosis?
Moderate to severe left-sided UC (21 cm) diagnosed 2001.
Avascular necrosis in both shoulders is my "forever" gift from Entocort.
Colazal, Remicade, Nature's Way Primadophilus Reuteri. In remission since April, 2006.
Co-Moderator UC Forum
Please remember to consult your health care provider when making health-related decisions.