Mucus in stool: Is it a concern?

  • image.alt
  • With Mayo Clinic gastroenterologist

    Michael Picco, M.D.

    read biography

Mayo Clinic Health Manager

Get free personalized health guidance for you and your family.

Get Started

Free

E-Newsletter

Subscribe to receive the latest updates on health topics. View sample

Question

Mucus in stool: Is it a concern?

What causes mucus in stool? Is this a concern?

Answer

from Michael Picco, M.D.

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.

AN01296

March 13, 2008

© 1998-2009 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.com," "EmbodyHealth," "Reliable tools for healthier lives," "Enhance your life," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.

Print Share Reprints

Text Size: smaller largerlarger