Hi doctor, my name is Robert. I m 69 years old, 5 6 tall, weigh 140 lbs. During the last two weeks I ve noticed a redish brown mucus on my stools and on the toilet bowl. My stools are still medium brown in color. My diet hasn t changed and I haven t been eating any red foods lately. Although I m not in any pain or discomfort, what would be causing this and should I be concerned? Thanks for your help. Sincerely, Robert D. Schmidt YYYY@YYYY