I am a 36 year old healthy female, who has been involved in running now for about a year. Approximately 1 month ago I started increasing my mileage (from 3 miles, 4 times/week to 4-6 miles 4 times/week). Many times after a run I do get "runners trots", or diarrhea. But recently after runs I have been having bloody diarrhea. The blood is more of a dark red, or maroon color than a bright red. Usually after a run, I start out with diarrhea, then over the next several hours, I'll have 4 more bowel movements, gradually getting firmer. Now everytime after a run, I notice either bloody diarrhea, or dark streaks/dark material through my stool. Last Monday I had a colonoscopy because of this. My Gastroenterologist told my husband that my colon looked healthy, and he wants to see me in his office in a week. I'm looking for another opionion. I am relieved that my colon looks healthy, but still concerned about where the blood in my stool is coming from? My GI doctor did tell me on my original visit, that he didn't think my running was the cause of the rectal bleeding, but just brought it too my attention. I look forward to your input.
runnercol