Blood in Stool: Is It a Sign of Colon Cancer? - Surgery

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Blood in the stool?


I have been experiencing irregular bowel movements, approximately every three days.
Recently, I have often passed pellet-like stools and just now noticed bright red streaks of blood (not much) along with white mucus attached (like it was wrapped around the stool).
I would like to know if this could possibly be colon cancer? The information I found online only mentions blood streaks and mucus.
I have already used an enema but still cannot pass stool, so I am very concerned that there might be something wrong.

Niming, 20~29 year old female. Ask Date: 2018/12/14

Dr. Ke Fangxu reply Surgery


At the age of 25, the likelihood of developing colorectal cancer is not zero, but generally speaking, it is very, very low.
Based on your description, it seems more like hemorrhoids.
I recommend starting with a light diet and maintaining a good lifestyle.
Spicy, irritating, and greasy foods should be avoided, and increasing your intake of plant fiber can also be beneficial.
If symptoms persist without improvement, you may want to consult a physician for medication or to undergo a colonoscopy.

Reply Date: 2018/12/14

More Info


When it comes to the presence of blood in stool, it is understandable to feel concerned, especially with the fear of serious conditions like colon cancer. However, it is essential to approach this issue with a clear understanding of the potential causes and the necessary steps to take.

Firstly, the presence of bright red blood in the stool can often indicate bleeding from the lower gastrointestinal tract, which includes the rectum and anus. Common causes of such bleeding include hemorrhoids (piles), anal fissures, or diverticular disease. Hemorrhoids, in particular, are a frequent culprit, especially if the blood is bright red and appears on the surface of the stool or on toilet paper. Anal fissures, which are small tears in the lining of the anus, can also cause sharp pain during bowel movements and may lead to blood being present in the stool.

The presence of white mucus alongside blood can be indicative of several conditions, including inflammatory bowel disease (IBD) such as Crohn's disease or ulcerative colitis. These conditions can cause inflammation of the intestines and lead to symptoms such as diarrhea, abdominal pain, and changes in bowel habits.

In your case, the description of "goat-like" stools, which are often small and hard, suggests that you may be experiencing constipation. This can lead to straining during bowel movements, which increases the risk of developing hemorrhoids or fissures, thereby causing bleeding. The use of enemas may provide temporary relief, but if you are still experiencing difficulty with bowel movements, it may be worthwhile to explore dietary changes or other treatments to promote regularity.

While it is natural to worry about the possibility of colon cancer, especially if you have a family history or other risk factors, it is important to note that the symptoms you describe do not necessarily point to cancer. Colon cancer typically presents with more systemic symptoms, such as significant changes in bowel habits, unexplained weight loss, persistent abdominal discomfort, or fatigue. Additionally, blood in the stool associated with cancer is often mixed throughout the stool rather than just appearing on the surface.

Given your concerns and the symptoms you are experiencing, it is advisable to consult with a healthcare professional. A thorough evaluation, including a physical examination and possibly a colonoscopy, can help determine the underlying cause of your symptoms. A colonoscopy is a procedure that allows doctors to visualize the inside of the colon and rectum, and it can be used to identify any abnormalities, including polyps or tumors.

In summary, while blood in the stool can be alarming and may indicate serious conditions, it is not always a sign of colon cancer. Conditions such as hemorrhoids, anal fissures, and inflammatory bowel disease are more common causes. It is crucial to seek medical advice to obtain a proper diagnosis and treatment plan. Regular screenings and being attentive to changes in your bowel habits are essential for maintaining gastrointestinal health, especially if there is a family history of colorectal cancer.

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