Blood in Stool: Causes, Concerns, and Cancer Risks - Gastroenterology and Hepatology

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Blood in the stool?


Doctor, I would like to ask about something I've noticed over the past few months.
Sometimes my bowel movements are very hard, dry, and rough, and when I wipe, there is blood—sometimes just a little, but other times it can be fresh blood dripping.
I also feel a constant discomfort and slight pain in my anus.
I often have issues with constipation; sometimes my bowel movements are smooth, but when they are not, I always experience bleeding.
This situation occurs almost every month; last month, it happened six times.
I'm very worried about this recurring issue and I'm afraid it might be cancer.
Is there a high risk of cancer with my symptoms?

Mei, 20~29 year old female. Ask Date: 2013/09/06

Dr. Chen Shidian reply Gastroenterology and Hepatology


Hello, anal fissures are mostly caused by constipation.
You can start with stool softeners and topical ointments or suppositories for bleeding and inflammation.
If you are concerned, a rectal examination can be performed.
Changhua Hospital cares about your health.
Dr.
Chen Shih-Dian.

Reply Date: 2013/09/06

More Info


Experiencing blood in your stool can be concerning, and it's understandable that you are worried about the possibility of cancer. Let's break down the potential causes of your symptoms, the concerns they raise, and the associated cancer risks.

First, the presence of blood in the stool can arise from various conditions, some of which are benign, while others may be more serious. Given your description of hard, dry stools and the associated pain during bowel movements, it sounds like you may be dealing with constipation and possibly hemorrhoids. Hemorrhoids are swollen veins in the lower rectum and anus that can cause bleeding, especially when straining during bowel movements. This is a common issue and often results in bright red blood on the toilet paper or in the toilet bowl.

Another potential cause of blood in the stool could be anal fissures, which are small tears in the lining of the anus that can occur due to passing hard stools. These fissures can be quite painful and may also lead to bleeding. Both hemorrhoids and fissures are typically not serious and can be managed with dietary changes, increased fluid intake, and sometimes topical treatments.

However, it is essential to consider other more serious conditions that could also lead to blood in the stool. These include diverticular disease, inflammatory bowel disease (IBD) such as Crohn's disease or ulcerative colitis, and colorectal cancer. While the risk of cancer increases with age and certain risk factors (such as family history, lifestyle factors, and personal medical history), the presence of blood in the stool does not automatically indicate cancer.

In your case, since you mentioned that you have been experiencing these symptoms frequently over the past few months, it is crucial to consult a healthcare professional for a thorough evaluation. They may recommend a physical examination, a digital rectal exam, and possibly further diagnostic tests such as a colonoscopy. A colonoscopy allows doctors to visualize the inside of your colon and rectum, helping to identify any abnormalities, including polyps or tumors.

It is also worth noting that while your symptoms are concerning, many individuals with similar symptoms do not have cancer. However, early detection is key in managing any potential issues effectively. If cancer is a concern, the earlier it is diagnosed, the better the prognosis.

In summary, while your symptoms warrant attention, they do not necessarily indicate a high risk of cancer. However, due to the frequency and nature of your symptoms, it is essential to seek medical advice. A healthcare provider can help determine the underlying cause of your symptoms and recommend appropriate treatment options. In the meantime, focusing on a high-fiber diet, staying hydrated, and managing constipation can help alleviate some of your discomfort. Remember, proactive health management is crucial, and addressing your concerns with a professional is the best course of action.

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