Mucus in Stool with Blood: Causes and Concerns - Gastroenterology and Hepatology

Mucus in stool with blood streaks?

Hello Doctor, I experienced lower abdominal pain around noon today and had diarrhea, but it wasn't too concerning.
Later in the afternoon, I had more abdominal pain and went to the restroom, but I only passed mucus with streaks of bright red blood (the blood was bright red, and there was no foul odor when I wiped with tissue).
At other times, I haven't felt much discomfort.
In the past, I had gastroenteritis and experienced similar diarrhea.
Previously, when I went to the doctor for abdominal pain, they only said it was constipation.
I'm currently away from home and it's not convenient for me to seek medical attention, but I will try to find time to go to the hospital soon.
Could you please help me understand what might be causing this and whether it could be serious? Thank you.

Hsu, 10~19 year old female. Ask Date: 2022/09/15

Dr. Chen Shidian reply Gastroenterology and Hepatology

If blood in the stool persists, it is recommended to seek medical evaluation.

Reply Date: 2022/09/15

More Info

The presence of mucus in stool accompanied by blood can be concerning and may indicate various underlying conditions. The fact that you experienced abdominal pain followed by diarrhea, and then noticed mucus with bright red blood, suggests a few potential causes that should be evaluated further.

1. Gastrointestinal Infections: One of the most common causes of mucus and blood in the stool is an infection, which can be viral, bacterial, or parasitic. Gastroenteritis, often caused by viruses like norovirus or rotavirus, can lead to inflammation of the intestines, resulting in mucus production and bleeding. Bacterial infections, such as those caused by Salmonella, Shigella, or E. coli, can also lead to similar symptoms.

2. Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease or ulcerative colitis can cause inflammation of the gastrointestinal tract, leading to symptoms such as abdominal pain, diarrhea, mucus in the stool, and blood. These conditions are chronic and require medical management.

3. Hemorrhoids or Anal Fissures: Bright red blood can sometimes originate from hemorrhoids or anal fissures, especially if there is straining during bowel movements. While these conditions can cause discomfort and bleeding, they are generally not serious compared to other potential causes.

4. Diverticular Disease: Diverticulitis, which occurs when diverticula (small pouches that can form in the colon) become inflamed or infected, can also lead to abdominal pain, changes in bowel habits, and blood in the stool.

5. Colorectal Polyps or Cancer: Although less common, especially in younger individuals, the presence of blood in the stool can be a sign of polyps or colorectal cancer. This is particularly a concern if there are changes in bowel habits, unexplained weight loss, or a family history of colorectal cancer.

Given your symptoms and the history of gastrointestinal issues, it is crucial to seek medical attention as soon as possible. A healthcare provider will likely perform a thorough evaluation, which may include a physical examination, blood tests, stool tests, and possibly imaging studies or a colonoscopy to determine the exact cause of your symptoms.

In the meantime, monitor your symptoms closely. If you experience worsening abdominal pain, fever, or significant changes in your bowel habits, seek immediate medical care. It is essential to address these symptoms promptly to rule out any serious conditions and to receive appropriate treatment.

In summary, while the presence of mucus and blood in stool can be alarming, it is essential to consult a healthcare professional for a proper diagnosis and management plan. Early intervention can significantly improve outcomes and alleviate concerns regarding potential serious underlying conditions.

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