Blood in Stool: Is It Hemorrhoids or Something More Serious? - Surgery

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Rectal bleeding


Hello, doctor.
I had treatment for internal hemorrhoids at the end of last year, and there were no issues afterward.
However, recently I have noticed that my stool appears to have a reddish color in the water, resembling blood.
Visually, there is no blood mixed in with the stool, only some slight streaks of blood on the surface.
There are no traces of blood on the toilet paper either.
I have recently eaten red dragon fruit, but it has been two days since then, and after researching online, I feel that if it were due to pigment, the stool itself would also show that color, which is not the case for me.
Therefore, I would like to ask if this situation is related to the internal hemorrhoids or if I should be concerned about the possibility of a tumor.
If possible, I have attached a picture at the following link: http://imgur.com/Zf1KOWP.
Thank you.

Zhen, 20~29 year old female. Ask Date: 2018/07/15

Dr. Ke Fangxu reply Surgery


Based on your imaging, it appears more likely that the discoloration resembles pigment from feces rather than bleeding.
It is recommended to avoid consuming red fruits and vegetables during this period and to monitor the situation.
Additionally, it is common for feces to become discolored if left in water for an extended period.
If symptoms persist without improvement, it is advisable to consult a physician.
If necessary, a stool occult blood test can be arranged to rule out the possibility of lower gastrointestinal bleeding.

Reply Date: 2018/07/15

More Info


When it comes to the presence of blood in stool, it is essential to approach the situation with caution and a thorough understanding of potential causes. In your case, you have previously been treated for internal hemorrhoids, which can indeed cause minor bleeding, especially if there is straining during bowel movements or if the hemorrhoids are aggravated. However, the appearance of red streaks in the water after a bowel movement raises some questions that warrant further investigation.

First, let's consider the characteristics of the blood you are observing. If the blood is bright red and appears only on the surface of the stool or in the toilet water, it is often indicative of a source in the lower gastrointestinal tract, such as hemorrhoids or anal fissures. Hemorrhoids can cause bright red blood due to the rupture of small blood vessels during bowel movements. Similarly, anal fissures, which are small tears in the lining of the anus, can also lead to bleeding.

On the other hand, if the blood were to be mixed within the stool or if the stool appeared dark or tarry, it could suggest a more serious issue, such as bleeding from higher up in the gastrointestinal tract, including the stomach or small intestine. In your case, since you mentioned that the blood is not mixed with the stool but rather appears as streaks, it leans more towards a benign cause, likely related to your previous hemorrhoid condition.

You also mentioned consuming red dragon fruit, which is known for its vibrant color. While it is unlikely that the color of the fruit would cause the specific symptoms you are describing, it is essential to consider dietary factors when evaluating stool color. However, as you noted, if the fruit were the cause, you would expect a more pronounced change in the stool's overall color.

Despite these considerations, it is crucial not to dismiss the possibility of more serious conditions. The presence of blood, even in small amounts, should always be evaluated by a healthcare professional. Conditions such as colorectal polyps, diverticulosis, or even colorectal cancer can present with similar symptoms, particularly in individuals with risk factors such as a family history of gastrointestinal diseases or changes in bowel habits.

Given your history of hemorrhoids and the current symptoms, it is advisable to consult with a healthcare provider, preferably a gastroenterologist, who can perform a thorough examination. They may recommend a digital rectal exam, anoscopy, or even a colonoscopy to visualize the lower gastrointestinal tract and rule out any serious conditions.
In summary, while your symptoms may be related to your previous hemorrhoid treatment, it is essential to seek medical advice to ensure that there are no underlying issues that require attention. Early detection and intervention are key to managing any potential gastrointestinal problems effectively.

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