Red Spots in Stool: Possible Causes and Concerns - Surgery

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Red spots in stool?


Recently, I have noticed dark red spots mixed in my stool, resembling skin allergy rashes, along with some red lumps slightly smaller than a pinky nail.
I initially thought this was caused by eating red quinoa and multigrain rice, so I switched to white rice.
However, after a few days, the issue persists.
I haven't consumed a large amount of red foods, and my bowel movements are regular, occurring once or twice a day, with well-formed stools that are not thinner in consistency.
The color is yellowish-brown.
The only supplements I am currently taking are probiotics and turmeric powder, and occasionally I take a combined B-complex and enzyme supplement.

Niming, 30~39 year old female. Ask Date: 2020/09/23

Dr. Ke Fangxu reply Surgery


Abnormal stool color is often caused by food residues, with common culprits including carrots, dragon fruit, tomatoes, and pumpkin.
It is advisable to temporarily avoid dark-colored foods (including turmeric).
If there is no improvement, you may consult a physician to perform a colonoscopy.

Reply Date: 2020/09/23

More Info


Understanding red spots in stool can be concerning, and it's important to approach this issue with a clear understanding of potential causes and when to seek medical attention. The presence of red spots or red flecks in your stool can be attributed to various factors, some benign and others that may require further investigation.

Firstly, it's essential to differentiate between the appearance of red spots and the actual color of the stool. If the red spots are bright red, it may indicate fresh blood, which could suggest bleeding in the lower gastrointestinal tract, such as from hemorrhoids, anal fissures, or diverticular disease. On the other hand, if the red spots are darker, they may be indicative of blood that has been digested, suggesting a source of bleeding higher up in the gastrointestinal tract, such as from ulcers or tumors.

In your case, you mentioned that the red spots resemble skin rashes and are accompanied by small red lumps. This description raises the possibility of dietary causes or benign conditions. For instance, certain foods, especially those high in pigments, can sometimes cause unusual appearances in stool. However, since you have switched from red rice to white rice and still observe the same red spots, it is less likely that your diet is the sole cause.

Another consideration is the role of probiotics and supplements. While probiotics are generally beneficial for gut health, they can sometimes cause changes in stool appearance, particularly if they alter gut flora significantly. Ginger and turmeric, while known for their anti-inflammatory properties, can also affect digestion and stool color. However, these effects are typically mild and should not lead to the appearance of red spots unless there is an underlying issue.

It is also worth noting that certain gastrointestinal conditions, such as inflammatory bowel disease (IBD) or infections, can lead to changes in stool appearance. If you experience additional symptoms such as abdominal pain, diarrhea, weight loss, or changes in bowel habits, it would be prudent to consult a healthcare professional for a thorough evaluation.

In summary, while the presence of red spots in stool can be alarming, it is essential to consider the context, including dietary habits, any accompanying symptoms, and overall health. If the red spots persist or are accompanied by other concerning symptoms, it is advisable to seek medical attention. A healthcare provider may recommend diagnostic tests, such as stool analysis or imaging studies, to determine the underlying cause and provide appropriate treatment if necessary. Remember, early intervention can often lead to better outcomes, so do not hesitate to reach out to a medical professional if you have concerns about your health.

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