Is Blood in Stool Normal? Gastrointestinal Concerns - Surgery

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Rectal bleeding


Hello doctor, I have irritable bowel syndrome with a constitution of damp-heat, and my stools are often sticky.
A few days ago, I went to an all-you-can-eat restaurant and ate a lot.
The next evening, I noticed a little blood on my stool, and today after having a bowel movement, I also found some blood in my stool.
Is this considered normal?

Niming, 10~19 year old female. Ask Date: 2016/07/31

Dr. Chen Jiaming reply Surgery


Although the most common causes of blood in the stool are hemorrhoids or damage to the intestinal mucosa (such as after multiple episodes of diarrhea), it is important to rule out the possibility of benign or malignant tumors in the intestines or other lesions.
Patients with irritable bowel syndrome typically have more frequent bowel movements (the actual frequency is not mentioned in the text).
It is recommended to adjust dietary habits (eating too much or too quickly is not a good practice!).
If blood in the stool continues to be a concern after making these adjustments, it is advisable to consult a colorectal surgeon or a gastroenterologist for a digital rectal examination or a colonoscopy to confirm the diagnosis.

Reply Date: 2016/07/31

More Info


Blood in stool is not considered normal and should always be taken seriously, especially if it occurs repeatedly or is accompanied by other symptoms. The presence of blood in your stool can indicate a variety of gastrointestinal issues, ranging from benign conditions to more serious health concerns. Given your history of irritable bowel syndrome (IBS) and the recent changes in your bowel habits, it is essential to understand the potential implications of your symptoms.

In your case, the blood you observed on your stool could be attributed to several factors. One possibility is that the blood is a result of hemorrhoids, which are swollen veins in the lower rectum or anus that can bleed, especially after straining during bowel movements. This is common among individuals who experience constipation or irregular bowel habits, which can be a concern for those with IBS. Another possibility is an anal fissure, which is a small tear in the lining of the anus that can occur due to passing hard stools. Both conditions can lead to bright red blood on the surface of the stool or on toilet paper.

However, the presence of blood can also indicate more serious conditions such as diverticulitis, inflammatory bowel disease (IBD), or even colorectal cancer, particularly if you have a family history of these conditions or if the blood is dark or mixed with the stool. Given your IBS diagnosis and the fact that you mentioned your stools are often sticky, it is crucial to monitor your symptoms closely. Changes in stool consistency, frequency, and the presence of blood can all be indicators of underlying gastrointestinal issues that may require further investigation.

It is also important to consider dietary factors. You mentioned eating at an all-you-can-eat restaurant, which may have included foods that your digestive system is not accustomed to or that could exacerbate your IBS symptoms. Certain foods can lead to increased gas, bloating, and changes in bowel habits, which may contribute to discomfort and the potential for bleeding if there is straining involved.

In light of your symptoms, it is advisable to consult a healthcare professional for a thorough evaluation. A doctor may recommend tests such as a stool analysis, colonoscopy, or imaging studies to determine the cause of the bleeding. They may also assess your IBS management plan, including dietary modifications, stress management techniques, and possibly medications to help regulate your bowel movements and reduce symptoms.

In summary, while occasional minor bleeding may be related to benign conditions like hemorrhoids or fissures, the presence of blood in your stool should never be ignored. It is essential to seek medical advice to rule out any serious conditions and to ensure that your gastrointestinal health is properly managed. Keeping a detailed record of your symptoms, dietary habits, and any other changes can be helpful for your healthcare provider in diagnosing and treating your condition effectively.

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