Mucus In Baby's Stool: Causes And What To Do About It

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A baby’s stool has a typical appearance due to their formula- or milk-only diet. However, some parents may fret over the appearance of mucus in the baby’s stool. The appearance of mucus in a baby’s poop is not always a cause of concern; however, at times, it may be seen due to some underlying cause.

Read this post to know more about the causes, diagnosis, and treatment of mucus in your baby’s poop.

What Is Mucus In Poop?

Mucus is a natural, jelly-like secretion produced by the mucous cells present across the gastrointestinal tract. Mucus provides lubrication within the intestine and also works as a barrier between bacteria and the epithelial cells that line the inside of the intestines (1) Secretions, such as saliva and snot, from other parts of the body, are also types of mucus.

Swallowed saliva and nasal mucus reach the gastrointestinal tract where they combine with the mucus secreted in the digestive system. Mucus travels with the waste generated by the intestine and is eventually discarded through stools (2) Therefore, having some mucus in stools is normal and a part of the body’s normal function.

Knowing how to identify mucus in the baby’s everyday stools will help you determine whether or not it is normal.

How To Identify Mucus In Baby’s Stool?

Your baby’s poop will have natural mucus that can be identified through the following indicators:

  1. Clear strings and striations in the poop. It appears as streaks on the stool.
  1. Gel-like coagulation. You will see lumps of stool with a gel-like consistency.
  1. Shine or glisten of the stool, similar to a gel.

Your baby’s stool will not look abnormal when the amount of mucus is normal. It is when the mucus is in excess or accompanied by another symptom that it becomes a sign of a problem.

When Can Mucus In The Baby’s Stool Be A Cause Of Concern?

The following signs of mucus in the baby’s stool could indicate a problem:

  1. Excessive mucus. The poop is entirely slimy, and the infant consistently poops that way. The excessive mucus may also appear as white puddles in the poop.
  1. Mucus contains blood spots. Poop is slimy and includes tiny red spots of blood.
  1. Baby cries while pooping due to the discomfort they experience when they poop.
  1. Other symptoms of ill health such as stomach ache, fever, poor appetite, and general lethargy.

Take your baby to a doctor if you see these signs or if you suddenly notice mucus in stools. There are various reasons why a baby could have more mucus in the stools.

What Could Cause Excess Mucus In The Baby’s Poop?

Some conditions cause excessive production of mucus by the mucous membranes:

  1. Irritable bowel syndrome: A genetic ailment that causes several symptoms such as abdominal pain, diarrhea, and the presence of excessive white-colored mucus. Patients with irritable bowel syndrome (IBS) consistently produce excess mucus (3) (4). At least 25% (1 out of 4) of the time, the stool will contain surplus mucus (5).
  1. Intussusception: A condition where a section of the intestine collapses and folds on itself to create a ring-like blockage. It is most common among babies between the ages of five to nine months (6). Intussusception can cause the baby to excrete jelly-like, mucus-ridden stools (7).
  1. Ulcerative colitis: It is chronic inflammation of the large intestine. Irritation of the bowel, pain, and mucus in stools are common symptoms (8). Ulcerative colitis is one of the many inflammatory bowel diseases (IBD) (9).
  1. Cystic fibrosis: A genetic disorder that leads to excess production of mucus. It leads to the accumulation of excessive mucus in the lungs and digestive system (10). Infants with the condition may excrete more mucus than usual.
  1. Intestinal infection: Several intestinal pathogens can lead to the passage of more mucus in stools, such as, E. coli bacteria (11), and parasites (12).
  1. Bowel polyps: These are small growths emerging from the inner lining of the gastrointestinal tract. They often lead to rectal bleeding and mucus in stools (13). Polyps in infants and toddlers are called juvenile polyps (14).
  1. Allergies: An infant with allergies and food intolerance especially from cow’s milk, can excrete mucus and blood in their stool. This happens because of the inflammation of the intestine due to ingestion of an allergic food (15).

Conditions that cause excess mucus in the stools also lead to other symptoms such as blood in the stool, abdominal cramps, poor appetite, and diarrhea. It means mucus is more likely to be obvious when your baby has mucus due to a problem.

Diagnosing The Causes Of Excess Stool Mucus

The doctor performs the following tests to determine the presence of any problem:

  1. Physical and visual examination: The doctor will feel for any swelling or anomaly in the abdominal cavity. The rectal opening may be checked for the presence of any problem or protrusion of a bowel polyp.
  1. Stool test: A lab analysis of the stool sample determines the quantity of mucus and also the presence of any pathogen.
  1. X-ray: An X-Ray provides a picture of any obstruction within the intestines.
  1. Ultrasound: A standard abdominal ultrasound provides details of the gastrointestinal tract, the presence of polyps, and blockages.
  1. Colonoscopy: A procedure in which the doctor inserts a probe into the large intestine through the rectal opening. The probe contains a camera to observe the inner lining of the intestine.

Colonoscopy may be used as a last resort when other diagnostic methods fail or provide inconclusive results. Infants and toddlers undergoing this procedure will be under the influence of general anesthesia (16).

Does Mucus In The Baby’s Stool Require Treatment?

Normal amounts of mucus in the stool do not warrant treatment. However, excess mucus accompanied by other symptoms will need management. Here is what is done to treat excess mucus in the baby’s stool:

  1. Medication to treat the infections. The baby will stop pooping mucus-laden stools once the pathogen is eliminated.
  1. Diet change to remove the suspected allergen can help subdue gastrointestinal allergy. The doctor will also suggest alternative food options to replace the allergen.
  1. Surgery may be necessary in the case of severe Intussusception and inflammatory bowel disease.
  1. Long-term management is necessary in the case of genetic diseases that often do not have a definitive cure. Effective management as suggested by the doctor is the only way to alleviate the symptoms like excess mucus in the stools.

The appearance of mucus in a baby’s stool is expected due to their formula or exclusive breastmilk diet. However, excessive mucus and other signs, such as crying when pooping, fever, stomachache, or blood in the stool, may indicate an underlying condition. So, if you notice abnormalities, make an appointment with your child’s doctor for the correct diagnosis and treatment. Once the underlying issue is treated, the amount of mucus in the baby’s stool will return to normal. Medication and dietary changes are the most common treatments; however, surgery and long-term treatment may be required in the case of a severe medical problem.

Infographic: Mucus In Baby’s Stool

Parents often fret over the appearance of mucus in their baby’s stool. However, it is normal and not always a cause for concern. Check out this infographic to learn about:

  • Appearance of mucus in baby’s stool
  • Possible causes of mucus in baby’s stool
  • When to worry
what does mucus in baby stool mean [Infographic]
Illustration: MomJunction Design Team

Key Pointers

  • Some mucus in the baby’s stool is normal and a part of the body’s normal function.
  • Excessive mucus or mucus with other symptoms like blood in stool indicates an underlying problem.
    Identifying the precise cause and timely initiation of treatment can help mitigate the risk of complication.

References:

MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
  1. The Gastrointestinal Barrier; Colorado State University
    http://www.vivo.colostate.edu/hbooks/pathphys/digestion/stomach/gibarrier.html
  2. Mucus Does More Than You Think; Massachusetts Institute of Technology
    https://scopeweb.mit.edu/mucus-does-more-than-you-think-8b12f8f6feae?gi=1cfc6ed1c547
  3. 5 Signs You Have Irritable Bowel Syndrome; Franciscan Health
    https://www.franciscanhealth.org/news-and-events/news/5-signs-you-have-irritable-bowel-syndrome
  4. Symptoms & Causes of Irritable Bowel Syndrome; U.S. Department of Health and Human Services
    https://www.niddk.nih.gov/health-information/digestive-diseases/irritable-bowel-syndrome/symptoms-causes
  5. H. Vahedi et al. Irritable Bowel Syndrome: A Review Article; National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4154827/
  6. Intussusception; The University of Chicago
    https://pedclerk.bsd.uchicago.edu/page/intussusception
  7. Intussusception; Children’s Hospital of Philadelphia
    https://www.chop.edu/conditions-diseases/intussusception
  8. Ulcerative colitis; NHS UK
    https://www.nhs.uk/conditions/ulcerative-colitis/
  9. Irritable Bowel Syndrome (IBS) and Inflammatory Bowel Disease (IBD); American Academy of Pediatrics
    https://www.healthychildren.org/English/health-issues/conditions/abdominal/Pages/Irritable-Bowel-Syndrome-IBS-and-Inflammatory-Bowel-Disease-IBD.aspx
  10. Diagnosed With Cystic Fibrosis; Cystic Fibrosis Foundation
    https://www.cff.org/What-is-CF/Diagnosed-With-Cystic-Fibrosis/
  11. Infectious Diseases Related to Travel; Centers for Disease Control and Prevention
    https://wwwnc.cdc.gov/travel/yellowbook/2018/infectious-diseases-related-to-travel/escherichia-coli-diarrheagenic
  12. E. M. Hechenbleikner & J.A. McQuade Parasitic Colitis; National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4442724/
  13. Bowel polyps; NHS UK
    https://www.nhs.uk/conditions/bowel-polyps/
  14. C.A. Durno Colonic polyps in children and adolescents; National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2657698/
  15. Allergic Colitis; Boston Children’s Hospital;
    https://www.childrenshospital.org/conditions-and-treatments/conditions/a/allergic-colitis
  16. Colonoscopy with General Anesthesia Infants and Toddlers; Nationwide Children’s Hospital
    https://www.nationwidechildrens.org/family-resources-education/health-wellness-and-safety-resources/helping-hands/colonoscopy-with-general-anesthesia-infants-and-toddlers
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Dr. Dur Afshar Agha

(MS)
Dr. Dur Afshar Agha is a consultant pediatrician with decades of experience in various medical facilities both in Pakistan and Saudi Arabia. She has headed the Department of Preventive Pediatrics at the prestigious, Children’s Hospital and Institute of Child Health in Pakistan and is a life member of the Pakistan Paediatric Association. She has also completed her Post Graduate Program... more

Rohit Garoo

Rohit Garoo is a zoologist-botanist turned writer with over 8 years of experience in content writing, content marketing, and copywriting. He has also done an MBA in marketing and human resources and worked in the domains of market research and e-commerce. Rohit writes topics related to health, wellness and development of babies. His articles featured on several notable websites, including... more