Rectal Bleeding: Causes and Concerns for Your Health

Regarding rectal bleeding?

I have been experiencing a significant amount of bleeding whenever I have a bowel movement since two days ago.
The bleeding is quite severe, resembling the amount that could be expelled from a syringe, and it occurs when I exert a little pressure.
However, the bleeding stops after I finish.
The next time I have a bowel movement, it starts again, with blood dripping once the stool begins to pass.
Could this be a sign of colorectal cancer? I am very concerned...
I don't have any other symptoms, just the heavy bleeding.
I was born with anal atresia (absence of the anal canal), and I'm unsure if this could have any impact.
This issue has only started occurring in the last two days.
Thank you, doctor, for taking the time to respond; I appreciate your help!

A-Huang, 30~39 year old female. Ask Date: 2016/02/16

Dr. Xu Kaixi reply Surgery

Rectal bleeding is an abnormal symptom that can range from common conditions like hemorrhoids to more serious gastrointestinal diseases.
Based on your description, it is more likely that the bleeding is caused by hemorrhoids.
It is recommended to visit a gastroenterology or surgical outpatient clinic for further evaluation.

Reply Date: 2016/02/16

More Info

Rectal bleeding can be a concerning symptom, and it's understandable that you're worried about the potential causes, including the possibility of colorectal cancer. Let's break down the potential causes of rectal bleeding, the implications of your specific situation, and the steps you should take to address your health concerns.

Common Causes of Rectal Bleeding
1. Hemorrhoids: One of the most common causes of rectal bleeding, especially if the blood is bright red and appears on toilet paper or in the toilet bowl. Hemorrhoids can be internal or external and are often associated with straining during bowel movements, constipation, or prolonged sitting.

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

3. Diverticular Disease: This condition involves the formation of small pouches in the colon wall, which can become inflamed or infected, leading to bleeding.

4. Colorectal Polyps: These are growths on the lining of the colon or rectum that can bleed. While many polyps are benign, some can develop into cancer over time.

5. Colorectal Cancer: While rectal bleeding can be a symptom of colorectal cancer, it is often accompanied by other symptoms such as changes in bowel habits, unexplained weight loss, or abdominal pain. Given your history of congenital conditions like anal atresia (no anal opening), it’s important to consider how this might affect your risk profile.

6. Gastrointestinal Infections: Infections can cause inflammation and bleeding in the gastrointestinal tract, leading to symptoms like diarrhea, abdominal pain, and fever.

Your Specific Situation
Given that you have a history of congenital conditions, such as being born with anal atresia, it’s crucial to consider how this may impact your gastrointestinal health. Congenital anomalies can lead to complications later in life, including issues with bowel function and increased risk for certain conditions.

The fact that you are experiencing significant bleeding, especially in the volume you described, is concerning. While it may not necessarily indicate cancer, the severity and sudden onset of your symptoms warrant immediate medical attention.

Recommended Actions
1. Seek Medical Attention: Given the amount of blood you are experiencing, it is essential to consult a healthcare professional as soon as possible. A gastroenterologist or a colorectal surgeon would be appropriate specialists to evaluate your condition.

2. Diagnostic Tests: Your doctor may recommend a colonoscopy to visualize the inside of your colon and rectum. This procedure can help identify the source of the bleeding, whether it be hemorrhoids, polyps, or other abnormalities.

3. Monitor Symptoms: Keep track of any additional symptoms you may experience, such as changes in bowel habits, abdominal pain, weight loss, or fatigue. This information will be valuable for your healthcare provider.

4. Lifestyle Modifications: While awaiting your appointment, consider increasing your fiber intake and hydration to help ease bowel movements and reduce strain. This may help alleviate some symptoms if hemorrhoids or fissures are contributing to your bleeding.

Conclusion
In conclusion, while rectal bleeding can stem from various causes, the volume and sudden onset of your symptoms, especially considering your medical history, necessitate prompt evaluation by a healthcare professional. Early diagnosis and intervention are key to managing any potential underlying conditions effectively. Don’t hesitate to seek help; your health is paramount.

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