Mucus in stool: A concern?

Mucus in stool is generally not an indication of a serious problem. Stool normally contains a small amount of mucus — a jelly-like substance that your intestines make to keep the lining of your colon moist and lubricated. Increased amounts of mucus in your stool may occur with diarrhea or constipation.

However, if you notice a change in your bowel habits or increased mucus in your stool that lasts for more than a few weeks, or if you have rectal bleeding or blood in your stool, consult your doctor. These may be signs of an underlying medical condition — such as ulcerative colitis or Crohn's disease — that requires evaluation.