7 Causes of Yellow Mucus Floating in Toilet

Seeing yellow mucus floating in your toilet bowl can undoubtedly be frightening. But, are you aware that the strong acid produced in your gut can digest your stomach lining? However, the thick mucus membrane layer helps prevent that from occurring. Without the mucus layer, ulcers can form, resulting in poor digestion and other gut issues.

This jelly-like membrane helps keep the linings of your large intestine lubricated and moisturized. Having a small fraction of mucus in your toilet is nothing to worry about. It can appear either clear or yellow. But when should you be concerned if your stool contains yellow mucus?

What Does Excess Yellow Mucus in Poop Signify?

A lot of yellow mucus in your stool is a sign that you’ve got an underlying problem with your digestion. Sometimes, you will feel very uncomfortable while doing your business in the toilet, which is indicative of other underlying health issues. It may cause you to experience cramping, bloating, stomach pain, or blood in your stool. You should always see a gastroenterologist if you notice more mucus in your poop.

7 Main Causes of Yellow Mucus Floating in Toilet

Excessive mucus in the stool can be a sign of a GI (gastrointestinal) problem. Changes in the amount of mucus in your stool may result from mucosal tissue in your intestines being destroyed by an inflammatory process. This process may lead to mucus being excreted along with your stool as you go to the bathroom. What’s more, this can cause pathogens to get into your system more quickly, and you may end up becoming ill.

Many conditions may trigger an increase in yellow mucus levels in your poop. Such conditions include:

1. Malabsorption Problems

Several conditions may cause your intestines to become utterly incapable of taking in or digesting certain nutrients. Chronic diseases linked to malabsorption, including certain cardiovascular illnesses, chronic pancreatitis, and celiac disease, may cause a person to excrete yellow mucus in stool.

2. Crohn’s Disease

Crohn’s disease is a chronic inflammatory bowel disease. It causes inflammation and swelling of the tissues of the digestive tract, which can cause severe symptoms like pain, fatigue, and severe diarrhea. This disease may be the leading cause of yellow mucus in stool.

3. Ulcerative Colitis

Like Crohn’s disease, this chronic inflammatory bowel illness affects the colon and results in blood-colored stools or stool containing yellow mucus. Those with ulcerative colitis may need help getting up and moving around. They may also experience fatigue due to being anaemic and sick.

4. Irritable Bowel Syndrome

Irritable bowel syndrome is a chronic disorder that affects the intestines. It can cause stomach pain and make your bowel movements painful. These usually happen when you’re stressed, eat certain foods, or recover from stomach bugs. It may also happen to women during a specific time of the menstrual cycle.

People with IBS are also more likely to develop other illnesses such as chronic fatigue syndrome, fibromyalgia, and chronic pain in the pelvis. Though they are normal and should not cause any significant health problems, IBS can significantly affect your quality of life.

5. Colon Cancer

Also known as rectal cancer or bowel cancer, colon cancer can be responsible for the appearance of yellow mucus in your poop. Some of its symptoms include persistent diarrhea, abdominal pain, and constipation.

6. Intestinal Infection

Infection from food-borne Gi diseases or bacteria may lead to yellow mucus in poop. For instance, salmonella from drinking contaminated food or water are often the most common reason people have a lot of yellow mucus in their stools.

7. Cystic Fibrosis

Cystic fibrosis is a disorder that may induce your body to secrete thick and sticky mucus. It causes obstructions in the lungs and intestines. People with cystic fibrosis often have difficulty breathing and have limited stamina before digestion.

Cystic fibrosis typically makes swallowing difficult because of the thick mucus in your food pipe. Likewise, this condition may lead to yellow mucus in your stool.

How To Cure Excess Excretion of Yellow Mucus in Your Poop

The are several medications that may be used to treat this condition. For instance, you can use antibiotics which can disrupt the flora and bad bacteria in your intestine that are responsible for diarrhea and the formation of mucus.

If you have excessive mucus, your doctor will take a detailed history to determine the reason behind this condition. Some of the tests that doctors commonly use include culture for parasites and bacteria in your stool, colonoscopy, a blood test to check for infection, CT scan, and endoscopy to try and diagnose the condition.

Once these problems are ruled out, your doctor shall use a combination of diet/lifestyle changes or medications to treat your condition. If you notice that you are passing a lot of yellow mucus in your bowel movements, consider visiting a gastroenterologist.


Why do I see yellow stuff after wiping my bum?

Mucus is the most common type of rectal discharge. It is jelly-like and is naturally found in your stomach. Yellow or white mucus in your stool may imply the presence of an infection, while red or pink color indicates rectal bleeding.

What diets may cause the excretion of mucus in poop?

Food intolerance or allergies to diets containing sucrose, gluten, fructose, or lactose, for instance, may lead to inflammation of the gut walls. This increases the secretion of mucus, which later leads to the formation of yellow mucus in your stool.

What type of bacterial infection leads to the production of mucus in stool?

Shigella gastroenteritis is a bacterial infection that’s highly linked to the production of mucus in poop. Other common symptoms of Shigella gastroenteritis include abdominal cramps, vomiting, nausea, and bloody stools.


Many people have noticed yellow mucus in their poop and have seen it floating in their toilets several times. Noticeable yellow mucus may be an indication of occasional constipation or dehydration, or it may be a symptom of a chronic health issue. However, based on the symptoms you might experience and the quantity of yellow mucus in your poop, you may need to see a doctor to diagnose any serious problems.


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