Mucus in Stool: Causes and Concerns Explained - Gastroenterology and Hepatology

What does it mean when there is mucus in the stool?

Hello, doctor.
A few days ago, my bowel movements were normal, about 20 centimeters in length and roughly the diameter of 2.5 fingers.
However, recently, possibly due to the cooler weather and having to wake up early for classes, I've been experiencing some difficulty.
Initially, I passed a few small, pellet-like pieces, followed by a normal stool.
This morning, I had a particularly thick stool, about 5 to 7 centimeters long, and again, it started with a few small pieces.
After finishing, I noticed a small amount of yellowish mucus on the toilet paper, which has only started in the past few days.

Additionally, I sometimes feel a slight dull pain under my right rib cage near the stomach, which is also a recent occurrence related to the weather change.
The pain is brief and goes away quickly, but I notice it again when I stretch.
Could this be nerve pain? This situation has only started recently.
In the past, I had similar symptoms and went to a clinic for an ultrasound, which showed no issues with my liver, gallbladder, or kidneys.
I also had a fecal occult blood test that came back normal.
The doctor prescribed medication that significantly improved my condition, but now the symptoms have returned.
What could be causing this?

L, 20~29 year old female. Ask Date: 2012/02/25

Dr. Yang Zhichao reply Gastroenterology and Hepatology

Hello Mr./Ms.
L, based on your description, if there is no family history, the change in your bowel habits is likely a functional disorder.
It may be influenced by changes in the environment, emotions, or stress, and could potentially be irritable bowel syndrome.
As for the sharp pain under the right rib cage, it may be related to movement, and pain could also be caused by nerve or muscle issues.
If there is no significant improvement, you may consider seeking assistance from a nearby gastroenterologist.
Changhua Hospital cares about your health.
Dr.
Yang Zhi-Chao.

Reply Date: 2012/02/25

More Info

Understanding mucus in stool can be a source of concern for many individuals, as it may indicate various underlying health issues. Mucus is a normal component of the digestive system, produced by the intestines to lubricate and protect the lining of the gastrointestinal tract. However, an increase in mucus or changes in its appearance can signal potential problems.

In your case, you mentioned experiencing changes in your bowel movements, including the presence of yellowish mucus and variations in stool consistency. The fact that your stools have been normal in size and shape previously, but have recently changed, could be attributed to several factors. Seasonal changes, dietary shifts, stress, or even minor gastrointestinal infections can all contribute to changes in bowel habits.

The presence of mucus in your stool, especially if it is accompanied by changes in stool consistency (such as the small, pellet-like stools you described), can indicate a few possibilities:
1. Irritable Bowel Syndrome (IBS): This is a common gastrointestinal disorder that can cause symptoms such as abdominal pain, bloating, and changes in bowel habits, including the presence of mucus. Stress and dietary changes can exacerbate IBS symptoms.

2. Infections: Gastrointestinal infections, whether viral or bacterial, can lead to increased mucus production as the body attempts to protect the intestinal lining from irritation and inflammation.

3. Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease or ulcerative colitis can cause inflammation in the intestines, leading to increased mucus production. However, these conditions are usually accompanied by other symptoms such as abdominal pain, diarrhea, and weight loss.

4. Dietary Factors: Changes in diet, such as increased intake of dairy or processed foods, can also lead to changes in bowel habits and mucus production.

Regarding the discomfort you feel under your right rib cage, it is important to consider that this area houses several organs, including the liver, gallbladder, and parts of the intestines. The intermittent nature of the pain, especially if it is mild and resolves quickly, may not be indicative of a serious condition. However, it could be related to:
- Muscle Strain: If you have been more active or have changed your posture, muscle strain can lead to discomfort in the rib area.

- Gastrointestinal Issues: Conditions such as gas, bloating, or even gallbladder issues can cause referred pain in this region.

- Nerve Irritation: Sometimes, nerve irritation can cause sharp, fleeting pains in the rib area, especially if there is any underlying tension or stress.

Given that you have previously undergone ultrasound examinations and stool tests that returned normal results, it is reassuring. However, if these symptoms persist or worsen, it would be prudent to follow up with your healthcare provider. They may recommend further evaluation, such as additional imaging or gastrointestinal assessments, to rule out any underlying conditions.

In summary, while mucus in stool can be concerning, it is often related to benign causes such as dietary changes or mild infections. The discomfort under your rib cage may also be benign, but if it continues or is accompanied by other symptoms, further evaluation is warranted. Maintaining a healthy diet, staying hydrated, and managing stress can also help improve your gastrointestinal health. If symptoms persist, do not hesitate to seek medical advice for a thorough evaluation.

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