Blood in Stool: Hemorrhoids or Colon Cancer Concerns? - Gastroenterology and Hepatology

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Rectal bleeding


About a month ago, I noticed that my stool was normal yellow and had a typical elongated shape.
However, there was some blood on the surface from the middle to the end of the stool.
The blood is consistently located on the same side, and I experience some squeezing pain when passing stool.
There is also blood on the toilet paper.
I have had bleeding before, but it was bright red and the blood was clearly separated from the stool, indicating hemorrhoids.
This time, the blood is not separated from the stool and does not appear as bright red as before, which makes me a bit worried about the possibility of colon cancer.
Is it just hemorrhoids? If it is hemorrhoids, how long will it take to heal? Should I undergo a fecal occult blood test or a colonoscopy?

K, 30~39 year old female. Ask Date: 2022/10/18

Dr. Yang Zhichao reply Gastroenterology and Hepatology


Hello Mr.
K, regarding your issue of blood in the stool, I recommend that you arrange for a colonoscopy at the hospital to rule out the possibility of polyps or tumors.
Thank you for your inquiry.

Reply Date: 2022/10/18

More Info


When it comes to the presence of blood in stool, it is essential to understand the potential causes and the necessary steps to take for proper diagnosis and treatment. Based on your description, it seems you are experiencing blood on the surface of your stool, accompanied by some discomfort during bowel movements. This situation raises valid concerns, particularly given your previous experiences with hemorrhoids and the potential for more serious conditions like colon cancer.

Firstly, the presence of blood in stool can arise from various sources, including hemorrhoids, anal fissures, diverticular disease, inflammatory bowel disease (IBD), and colorectal cancer. Hemorrhoids are swollen blood vessels in the rectal area that can bleed, especially during bowel movements. The blood from hemorrhoids is typically bright red and may appear on the toilet paper or on the surface of the stool, as you described. Anal fissures, which are small tears in the lining of the anus, can also cause similar symptoms, including pain and bleeding during bowel movements.

Your description of the blood being less bright red and not separating from the stool could suggest a different issue, but it does not definitively indicate colon cancer. Colon cancer typically presents with other symptoms, such as changes in bowel habits, unexplained weight loss, fatigue, or abdominal pain. However, it is crucial to note that colon cancer can occur in younger individuals, especially if there is a family history of the disease, as in your case with your grandfather.

Given your symptoms and concerns, it is advisable to consult a healthcare professional, preferably a gastroenterologist, for a thorough evaluation. They may recommend a fecal occult blood test (FOBT) to check for hidden blood in the stool, which can help determine if there is bleeding occurring within the gastrointestinal tract. Additionally, a colonoscopy may be warranted, especially since you have a history of hemorrhoids and are experiencing new symptoms. A colonoscopy allows for direct visualization of the colon and rectum and can help identify any abnormalities, such as polyps or tumors.

In terms of treatment, if hemorrhoids are confirmed as the cause of your symptoms, they often improve with conservative measures. These may include increasing dietary fiber intake, staying well-hydrated, and using topical treatments to alleviate discomfort. Over-the-counter medications can also help manage pain and inflammation. If symptoms persist or worsen, more invasive treatments, such as rubber band ligation or surgical options, may be necessary.

In summary, while your symptoms may suggest hemorrhoids, it is essential to rule out more serious conditions like colon cancer, especially given your family history. Seeking medical advice and undergoing appropriate testing will provide clarity and peace of mind. Remember that early detection and intervention are key in managing any gastrointestinal issues effectively.

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