Rectal Bleeding: Causes and When to Seek Help - Surgery

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Rectal bleeding


Hello, Doctor.
I usually have regular bowel movements (once a day), and my stools are not hard.
However, for the past week, I have been experiencing blood in my stool every day since last week.
The blood appears along with the stool, and it disappears after wiping; there is no unusual odor, and I do not have any abdominal pain or discomfort.
My work involves both walking around and sitting at a desk.
I rarely eat out (no more than once a week), consume a large amount of fruits and vegetables daily, and drink more than 1500 cc of water.
I also schedule one hour of exercise every day.
Since I have never experienced this issue before, I am a bit concerned that there might be something wrong with my health.
Could you please provide some advice? Thank you.

Niming, 20~29 year old female. Ask Date: 2016/11/02

Dr. Xu Kaixi reply Surgery


Hello: Blood in the stool, along with changes in bowel habits or other accompanying symptoms, can indicate a range of possible diagnoses, from common hemorrhoids to more serious gastrointestinal conditions such as inflammatory bowel disease or tumors.
However, if you have described prolonged bleeding, it is advisable to visit a hospital's gastroenterology or surgical outpatient department for further evaluation, including an assessment for a colonoscopy.

Reply Date: 2016/11/02

More Info


Rectal bleeding can be a concerning symptom, and it’s important to understand its potential causes and when to seek medical help. Based on your description, you have been experiencing rectal bleeding daily for the past week, with blood appearing alongside your stool but without any accompanying pain or unusual odor. Given your healthy lifestyle, including a balanced diet rich in fruits and vegetables, adequate hydration, and regular exercise, it’s understandable that you are worried about this sudden change.


Possible Causes of Rectal Bleeding
1. Hemorrhoids: One of the most common causes of rectal bleeding, hemorrhoids are swollen blood vessels in the rectal area that can bleed during bowel movements. They can be internal or external and may not always cause pain.

2. Anal Fissures: These are small tears in the lining of the anus, often caused by passing hard stools. They can lead to bleeding and may be associated with sharp pain during bowel movements.

3. Diverticular Disease: Diverticulosis, which involves the formation of small pouches in the colon wall, can lead to diverticulitis, where these pouches become inflamed or infected, potentially causing bleeding.

4. Colorectal Polyps or Cancer: While less common, polyps (growths on the colon lining) can bleed, and some may be precursors to colorectal cancer. Any new onset of rectal bleeding, especially in individuals over 50 or with a family history of colorectal cancer, should be evaluated.

5. Gastrointestinal Infections: Certain infections can cause inflammation and bleeding in the gastrointestinal tract, although these are often accompanied by other symptoms like diarrhea or abdominal pain.


When to Seek Medical Help
While some causes of rectal bleeding may be benign, it is crucial to seek medical attention if you experience any of the following:
- Persistent Bleeding: If the bleeding continues for more than a few days or worsens.

- Large Amounts of Blood: If you notice a significant amount of blood, especially if it’s bright red or mixed with stool.

- Accompanying Symptoms: If you experience abdominal pain, changes in bowel habits, weight loss, or fatigue.

- Age Considerations: If you are over 50 or have a family history of colorectal issues, it’s advisable to consult a healthcare provider sooner rather than later.


Recommended Actions
1. Consult a Healthcare Provider: Given that this is a new symptom for you, it’s essential to schedule an appointment with a healthcare professional. They may perform a physical examination and recommend further tests, such as a colonoscopy, to determine the cause of the bleeding.

2. Keep a Symptom Diary: Documenting your symptoms, including the frequency and amount of bleeding, any changes in bowel habits, and any other associated symptoms, can provide valuable information for your healthcare provider.

3. Dietary Considerations: While you already maintain a healthy diet, ensure you’re consuming enough fiber to prevent constipation, which can exacerbate hemorrhoids and fissures. If you suspect hemorrhoids, consider increasing your fiber intake even further and staying well-hydrated.

4. Avoid Straining: When using the bathroom, try to avoid straining, as this can worsen hemorrhoids and fissures. If you experience constipation, consider using a stool softener or a fiber supplement after consulting your doctor.

In conclusion, while rectal bleeding can often be attributed to benign conditions like hemorrhoids or fissures, it’s essential to take this symptom seriously, especially since it’s a new occurrence for you. Seeking medical advice will help ensure that any underlying issues are addressed promptly and appropriately.

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