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15 Shocking Facts About Why Dog Poop Mucus (Causes and Treatment)

Last Updated on January 23, 2024 by Dogs Vets

Why dog poop mucus (Causes and Treatment)


If you have ever noticed mucus on your dog’s poop, you might have wondered what it means and whether you should be concerned.

Mucus is a slimy substance that is produced by the intestines to keep the lining of the colon lubricated and moist and prevent damage by harmful substances.

The presence of mucus on the stool is not necessarily a sign of a serious problem, but it could indicate an underlying condition that needs attention.


Some of the possible causes of mucus on the dog’s poop are:

– Irritable bowel syndrome (IBS): This is a chronic condition that affects the motility and function of the intestines, causing symptoms such as diarrhea, constipation, abdominal pain, gas and bloating.

Dogs with IBS may have more mucus in their stool than normal, as the intestines try to protect themselves from irritation. IBS can be triggered by stress, dietary changes, infections or allergies.

– Parasites: Intestinal parasites such as worms, giardia or coccidia can cause inflammation and damage to the intestinal lining, resulting in increased mucus production.

Parasites can also interfere with the absorption of nutrients and cause weight loss, vomiting, diarrhea or blood in the stool. Parasites can be diagnosed by a fecal exam and treated with appropriate medications.

– Colitis: This is an inflammation of the colon that can be caused by various factors, such as infections, allergies, toxins, foreign bodies or tumors.

Colitis can cause diarrhea, mucus and blood in the stool, straining to defecate, urgency and abdominal pain. Colitis can be acute or chronic and may require medication, dietary changes or surgery depending on the cause and severity.

– Dietary issues: Your dog might have eaten something spoiled, raw, or allergic to, which can cause inflammation and irritation in the digestive tract. This can lead to mucus production and diarrhea.

To prevent this, avoid feeding your dog human food, garbage, or anything that is not part of their regular diet. You can also try a limited-ingredient or hypoallergenic diet if your dog has food sensitivities.

– Anal gland problems: The anal glands are two small sacs located on either side of the anus that secrete a smelly fluid that helps dogs mark their territory.

Sometimes, the anal glands can become infected, impacted or abscessed, causing pain, swelling and discharge around the anus. The discharge may mix with the stool and appear as mucus.

Anal gland problems can be treated by expressing the glands manually or surgically removing them if necessary.

If you notice mucus on your dog’s poop, you should monitor your dog for any other signs of illness or discomfort.

If the mucus persists for more than a day or two, or if your dog has other symptoms such as diarrhea, vomiting, weight loss, lethargy or appetite loss, you should consult your veterinarian for a proper diagnosis and treatment.

Your vet may perform a physical exam, blood tests, fecal tests or imaging tests to determine the cause of the mucus and prescribe appropriate medications or dietary modifications.

In some cases, surgery may be required to remove any obstructions or tumors in the colon.

Mucus on the dog’s poop is not always a cause for alarm, but it should not be ignored either. It could indicate a minor irritation or a serious condition that needs medical attention.

By keeping an eye on your dog’s poop and taking him to the vet when needed, you can help ensure his digestive health and well-being.


15 Facts To Know

15 shocking facts surrounding this phenomenon, shedding light on the causes and potential treatments for a matter that might leave pet owners bewildered.

  1. Normal vs. Abnormal: Dog poop can vary in texture and color, but the presence of mucus can be a cause for concern. Distinguishing between normal and abnormal occurrences is crucial.
  2. Indicators of Health: Mucus in dog poop can serve as an indicator of your furry friend’s overall health. Understanding the signs can help you address potential issues early on.
  3. Dietary Influences: The canine diet plays a significant role in the consistency of their poop. Certain food items may contribute to the development of mucus.
  4. Underlying Infections: Infections, both bacterial and parasitic, can lead to mucus in dog poop. Recognizing the signs is essential for prompt veterinary attention.
  5. Inflammatory Bowel Disease (IBD): IBD is a common culprit behind mucus in dog feces. We explore how this condition can affect your pet’s digestive system.
  6. Allergies and Sensitivities: Dogs, like humans, can develop allergies and sensitivities to specific foods, leading to mucus production. Discovering and managing these triggers is crucial.
  7. Stress and Anxiety: Believe it or not, stress and anxiety can impact your dog’s gastrointestinal health, potentially manifesting in mucus-laden poop.
  8. Parasitic Invaders: Worms and other parasites are notorious for causing digestive disturbances in dogs, often resulting in mucus in their stool.
  9. Dehydration: Adequate hydration is key to a healthy digestive system. We explore how dehydration can contribute to mucus-related issues.
  10. Canine Colitis: Colitis in dogs is another condition linked to mucus in poop. Learn about its causes, symptoms, and potential treatments.
  11. Gastrointestinal Obstruction: Serious conditions, such as gastrointestinal obstruction, can manifest through changes in your dog’s bowel movements, including the presence of mucus.
  12. Rectal Injuries: Injuries to the rectum can lead to mucus discharge. We examine how trauma can affect your dog’s gastrointestinal health.
  13. Diagnostic Procedures: Understanding the diagnostic process for identifying the root cause of mucus in dog poop is crucial for effective treatment.
  14. Veterinary Intervention: Timely consultation with a veterinarian is paramount when faced with persistent mucus-related issues. We discuss potential treatments and interventions.
  15. Preventive Measures: Lastly, we explore preventive measures and lifestyle adjustments to promote a healthy digestive system in your canine companion.


When does mucus cause concern?

  • When there is an excessive amount.
  • When there is blood present.
  • When there is vomiting, diarrhea, drowsiness and/or loss of appetite.


What does mucus usually look like?

Normal mucus usually looks like a clear jelly-like substance mixed with feces. Sometimes, it may wrap around the stool like a sausage casing.

In some cases, mucus may also appear white. If you make a habit of checking your dog’s stool regularly, then you will quickly notice when something looks off.

In fact, your dog’s poop can tell you a lot about their health conditions.

So, before picking it up, make sure you take a quick look to make sure your dog’s stool looks normal.

If you see mucus in your dog’s stool, find out what may be causing the mucus and when you should see a veterinarian.


Is mucus on the dog poop stool dangerous?

A little mucus in your dog’s feces is not a cause for panic and there are ways you can help at home. Be sure to mention these conditions at your next vet visit.

What does mucus usually look like? - mucus in dog poop with image
mucus in dog poop with image


Excessive mucus in your dog’s stool may indicate that you need veterinary treatment for a disease. If you consistently see mucus in your dog’s stool, or if you see a lot of mucus even in one instance, then you need to make an appointment with your veterinarian.

If your dog is young, old or already sick, it is best to contact your veterinarian immediately. With these dogs, health can decline rapidly, so you should inform your veterinarian of any changes you notice as soon as possible.


When can you treat the condition at home?

If your dog has only a little excess mucus in his stool but is feeling fine (eating well, happy, active, no diarrhea, etc.), you can try treating the condition at home.



Sometimes switching to an easily digestible diet or adding other fibers to the diet can help.

Cooked white meat chicken (no skin or bones), white rice and a tablespoon of canned pumpkin (depending on the size of your dog) is a good homemade option that you can safely feed your dog for a few days.


Dog poop mucus – Probiotics

A small amount of mucus in the stool (in an otherwise healthy dog) does not require medication, but probiotic supplements may help.

Look for probiotic products specifically designed for dogs, or ask your veterinarian for advice.


When does mucus on the dog’s stool need to be checked by a veterinarian?

If your dog has had an abnormal amount of mucus in the stool for an extended period of time, or if your dog has other symptoms, such as

  • lack of appetite
  • weight loss
  • vomiting
  • diarrhea

In these cases, there may be an underlying health problem. Your veterinarian will take a complete health history and perform a physical exam. They may need to run some combination of the following tests.

  • Fecal examination
  •  Blood and sweat work
  • Urinalysis
  • Abdominal x-ray and/or ultrasound
  • Endoscopy
  • Intestinal biopsy


Basic Conditions and Treatments

Appropriate treatment will depend on the results of these tests and your dog’s final diagnosis. These are some of the more common conditions that cause fecal mucus in dogs.

Intestinal infections

Bacteria, viruses and fungi can all infect the canine gastrointestinal (GI) system.

With a GI infection, most dogs will have diarrhea, vomiting, loss of appetite or other symptoms in addition to fecal mucus. Supportive care and medications to address the infection will be necessary.


Dog poop mucus – Parasitic worms

Whipworms, tape worms, Giardia lamblia and other intestinal parasites can cause mucus in the dog’s feces.

A fecal exam can identify the type of parasite present and an appropriate dewormer should address the problem.


Improper Diet

When a dog eats something unusual, it can damage the gastrointestinal tract and cause fecal mucus. Mild cases can take a little time to resolve.

More severe cases may require medications to control vomiting and diarrhea, antibiotics, fluid therapy, nutritional support, and sometimes surgery to remove the foreign body.


Changes in diet/adverse food reactions

Sudden changes in diet may result in the appearance of mucus in the dog’s feces. Returning to the original food and then slowly mixing more and more of the new food into the old food usually resolves the problem.

In some cases, a food allergy/intolerance should be attributed. You may need to switch to a therapeutic diet, such as a veterinarian-prescribed hypoallergenic food.


Irritable bowel syndrome

Stress is thought to be a major factor in the onset of irritable bowel syndrome.

Treatment includes stress relief, dietary changes and medications to reduce the severity of symptoms in dogs (e.g., salazosulfapyridine).


Dog poop mucus causes Inflammatory diseases

Inflammatory bowel disease (IBD) causes fecal mucus but is usually accompanied by weight loss, vomiting or diarrhea.

Dietary changes and sometimes treatment with immunosuppressive drugs should alleviate the symptoms in dogs.



Cancer of the gastrointestinal tract can cause fecal mucus.

Treatment may include surgery, chemotherapy, radiation or palliative care.


Acute hemorrhagic diarrhea syndrome (AHDS)

AHDS (also called hemorrhagic gastroenteritis) may result when dogs have large amounts of blood and mucus (often called raspberry jam) in their feces.

Treatment includes supportive therapy, anti-nausea medications, fluid therapy and antibiotics.


Questions to ask your veterinarian

Ask your veterinarian about any possible side effects of the medications your dog is taking. Find out when they want to see your dog for a progress check and who to contact in the event of an emergency outside of normal business hours.


Possible complications to watch out for

Talk to your veterinarian if you have any questions or concerns about your dog’s condition, especially if your dog is experiencing a worsening of symptoms such as

  • Lethargy or depression
  • Lack of appetite
  • Vomiting or diarrhea (especially dark/tarred or containing fresh blood)
  • Pain

Conclusion on why your dog poop mucus

Keep in mind that young or old dogs, or dogs suffering from health conditions may become ill very quickly. In this case, it is best to be sorry and to consult your veterinarian as soon as possible.


Fact Check

We strive to provide the latest valuable information for pet lovers with accuracy and fairness. If you would like to add to this post or advertise with us, don’t hesitate reach us. If you see something that doesn’t look right, contact us!





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