light brown mucus coming out of anus

Hi all,
during defecation, right after the solid waste has been expelled, i have been experiencing mucus coming out of my rectum. The colour is light-brown and the consistency is the same as the expectorate that comes out of a nose during a mild cold. The frequency has been of about once or twice a week for the past month; before then, it would occur occasionally.

Does this ring a bell of a pathology to you?

Thanks in advance for your help,
-andre