Bowel Issues: Mucus, Blood, and Possible Colorectal Cancer Symptoms - Gastroenterology and Hepatology

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Bowel issues


I have been experiencing transparent white mucus during bowel movements, and sometimes there is blood, which occurs almost constantly but varies in amount.
Sometimes there is blood, and sometimes there isn't.
I also feel dizzy easily, and my breathing can make me feel a bit lightheaded.
Previously, I would have a bowel movement every two to three days, but now I almost go every day.
If I don't have a bowel movement for a day, I often experience abdominal pain.
I also have stomach pain frequently, which is not always constant; sometimes it feels sharp.
I heard on TV that these symptoms are very similar to "colorectal cancer." I would like to ask the doctor if my symptoms could indicate that.
Additionally, I heard on TV about "changes in bowel habits." What does that mean? Does it refer to the frequency of bowel movements, or does it imply that I used to have natural bowel movements but now may need assistance?

Xiao Jie, 10~19 year old female. Ask Date: 2008/07/05

Dr. Chen Shidian reply Gastroenterology and Hepatology


Hello Mr.
Hsiao-Chieh: A change in bowel habits refers to a variation in the frequency of bowel movements.
Additionally, due to the presence of blood in the stool, it is recommended that you visit a gastroenterology clinic for a painless colonoscopy.
Changhua Hospital cares about your health.
Best regards, Chen Shih-Tien.

Reply Date: 2008/07/05

More Info


Your symptoms, including the presence of mucus and blood in your stool, changes in bowel habits, and associated dizziness, are indeed concerning and warrant further investigation. While I cannot diagnose you, I can provide some insights based on your description and general medical knowledge.

Firstly, the presence of mucus in your stool can be a normal occurrence, as mucus is produced by the intestines to help lubricate the stool. However, when it is accompanied by blood, especially if the blood is bright red or if you notice significant variations in the amount of blood, it raises a red flag. Blood in the stool can be indicative of several conditions, ranging from benign issues like hemorrhoids or anal fissures to more serious conditions such as inflammatory bowel disease (IBD) or colorectal cancer.

The fact that you experience dizziness and a sensation of lightheadedness could suggest that you are losing blood, which can lead to anemia. Anemia can cause symptoms like fatigue, weakness, and dizziness, especially when standing up quickly, which could explain your experience of feeling faint or dizzy upon standing.

Your change in bowel habits, from having a bowel movement every two to three days to now having one almost daily, is also significant. Changes in bowel habits refer to any alterations in your typical pattern of bowel movements. This can include changes in frequency (more or less frequent), consistency (hard or loose stools), and the ease of passing stools. It can also refer to the need for assistance in having a bowel movement, such as using laxatives or manual maneuvers to facilitate defecation.
In your case, the shift from infrequent to more frequent bowel movements could indicate an underlying issue, especially if it is accompanied by discomfort or pain. The abdominal pain you describe, whether sharp or dull, can also be a symptom of various gastrointestinal conditions, including infections, IBD, or even malignancies.

Given your family history of colorectal cancer and the symptoms you are experiencing, it is crucial to seek medical attention promptly. A healthcare professional may recommend a colonoscopy, which is a procedure that allows for direct visualization of the colon and rectum, and can help identify any abnormalities such as polyps, tumors, or signs of inflammation. Additionally, stool tests may be conducted to check for hidden blood or other markers of disease.

In summary, your symptoms are concerning and could potentially indicate a serious condition such as colorectal cancer, especially given the presence of blood and mucus, changes in bowel habits, and associated symptoms like dizziness. It is essential to consult with a healthcare provider who can perform a thorough evaluation, including a physical examination and appropriate diagnostic tests. Early detection and intervention are key in managing any potential gastrointestinal issues effectively.

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