Rectal Bleeding: Causes and When to Seek Help - Surgery

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Blood in stool


Current situation: There is blood in the stool, but it is not mixed with the stool; it is flowing directly.
At the beginning of the bowel movement, there was some pain at the anal opening, but it subsided afterward.
I later noticed that the bleeding has continued for 2 days.
Is this hemorrhoids? An anal fissure? However, there is no blood on the stool itself; it appears to be fresh blood that has just come out.

Xiansheng, 20~29 year old female. Ask Date: 2013/07/18

Dr. Yu Mingchang reply Surgery


Hello^^ Based on what you mentioned, the likelihood of an anal fissure is greater! Thank you!

Reply Date: 2013/07/18

More Info


Rectal bleeding can be a concerning symptom, and understanding its potential causes is crucial for determining the appropriate course of action. Based on your description, it seems that you are experiencing fresh blood from the rectum, which can be alarming. The fact that you initially felt some pain during bowel movements but then the pain subsided is also noteworthy.
There are several potential causes for rectal bleeding, and while hemorrhoids (commonly referred to as "piles") and anal fissures are among the most common, there are other possibilities that should be considered.
1. Hemorrhoids: These are swollen veins in the lower rectum or anus that can cause bleeding, especially during bowel movements. If the blood is bright red and appears on the toilet paper or in the toilet bowl, it is often indicative of hemorrhoids. They can be internal or external, and while they can be uncomfortable, they are usually not serious.

2. Anal Fissures: These are small tears in the lining of the anus, often caused by passing hard stools. They can cause sharp pain during bowel movements and may also lead to bleeding. The blood is typically bright red and may be seen on the toilet paper or on the stool.

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

4. Colorectal Polyps or Cancer: While less common, rectal bleeding can also be a sign of more serious conditions such as polyps or colorectal cancer. This is especially a concern if the bleeding is persistent, accompanied by changes in bowel habits, weight loss, or abdominal pain.

5. Infections or Inflammatory Conditions: Conditions such as ulcerative colitis or Crohn's disease can also lead to rectal bleeding. These are inflammatory bowel diseases that may present with other symptoms like diarrhea, abdominal pain, and weight loss.

Given that you have experienced bleeding for two days, it is important to seek medical attention. Here are some recommendations on when to seek help:
- Persistent Bleeding: If the bleeding continues or worsens, it is essential to consult a healthcare provider.

- Accompanying Symptoms: If you experience significant pain, changes in bowel habits, weight loss, or any other concerning symptoms, you should seek medical evaluation.

- First Episode: If this is your first experience with rectal bleeding, it is advisable to get it checked out, even if the bleeding seems minor.

In terms of what to expect during a medical evaluation, your healthcare provider may perform a physical examination, including a digital rectal exam, and may recommend further tests such as a colonoscopy to visualize the colon and rectum. This can help identify the source of the bleeding and determine the appropriate treatment.

In the meantime, it may be helpful to keep track of your symptoms, including the amount and frequency of bleeding, any associated pain, and any changes in your bowel habits. This information can be valuable for your healthcare provider in making a diagnosis.

In conclusion, while hemorrhoids and anal fissures are common causes of rectal bleeding, it is important to rule out more serious conditions. Seeking medical attention is the best course of action to ensure proper diagnosis and treatment.

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