Red doesn't always mean that it's nothing serious. I was bleeding from way up in my TI, but it was coming out SO fast that it didn't have time to turn dark. Had I just dismissed it because it was bright red, I would have bled to death!
I think it's always good to bring it up to your doctor, let them know what's going on, and they can see if it's something to worry about or not.
Diagnosed with Crohn's Disease 2/06 after sever GI bleed. Has been suffering since 1998. History of rectal fistula and gallbladder removal. Currently taking Prednisone: tapered to 15 mg *eek*, Asacol, Questran, Toprol XL (for high blood pressure).