Dark Green Stool: When to Seek Medical Attention - Gastroenterology and Hepatology

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Dark green stool?


Hello doctor, I recently noticed that my stool has been dark green after wiping.
I was diagnosed with an illness two weeks ago but have since recovered.
My diet has remained almost the same as before the diagnosis, but the stool color changed after the illness.
Occasionally, I experience diarrhea in the morning, but otherwise, my stools are normally formed and of regular thickness.
Should I seek immediate medical attention, or can I wait and see? Thank you.

Shi Nan, 20~29 year old female. Ask Date: 2023/07/17

Dr. Cai Anshun reply Gastroenterology and Hepatology


Hello: Some individuals who have tested positive for COVID-19 may experience gastrointestinal symptoms.
It is advisable to monitor your condition and maintain a light diet.
If there is no improvement, you may consult a gastroenterologist to determine if medication or further testing is necessary.
Changhua Hospital cares about your health.
Dr.
Tsai An-Shun.

Reply Date: 2023/07/17

More Info


Dark green stool can be a concerning symptom, and it's important to understand its potential causes and when to seek medical attention. In your case, since you recently recovered from an illness, it’s understandable to be vigilant about any changes in your body, including your bowel movements.

Firstly, the color of stool can be influenced by various factors, including diet, medications, and underlying health conditions. Dark green stool can result from consuming certain foods, particularly those high in chlorophyll, such as leafy greens (spinach, kale), or foods with artificial coloring. Additionally, iron supplements or medications can also lead to changes in stool color.

In your situation, since you mentioned that your diet has remained consistent and you have recently recovered from an illness, it’s essential to consider other factors. The fact that you are experiencing occasional diarrhea could indicate that your digestive system is still adjusting post-illness. Viral or bacterial infections can sometimes lead to temporary changes in bowel habits, including color and consistency.

However, there are certain signs and symptoms that warrant immediate medical attention. If your dark green stool is accompanied by any of the following, you should seek medical advice promptly:
1. Persistent Diarrhea: If the diarrhea continues for more than a couple of days, especially if it is severe or accompanied by dehydration (e.g., dry mouth, decreased urination, dizziness).

2. Abdominal Pain: Severe or persistent abdominal pain that does not improve could indicate an underlying issue that needs to be addressed.

3. Blood in Stool: If you notice any blood or mucus in your stool, this is a red flag and requires immediate medical evaluation.

4. Fever: A fever accompanying gastrointestinal symptoms could indicate an infection that may need treatment.

5. Unexplained Weight Loss: If you are losing weight without trying, this could be a sign of a more serious condition.

6. Change in Appetite: A significant decrease in appetite or inability to eat could also be concerning.

In the absence of these alarming symptoms, it may be reasonable to monitor your condition for a short period. Keep track of any changes in your stool color, consistency, and frequency, as well as any other symptoms you may experience. If the dark green color persists for more than a few days or if you develop any of the concerning symptoms mentioned above, it would be wise to consult a healthcare professional for further evaluation.

In summary, while dark green stool can sometimes be benign and related to dietary factors, it is essential to remain vigilant, especially after a recent illness. If you have any doubts or if your symptoms change, do not hesitate to seek medical advice. Your health is paramount, and it’s always better to err on the side of caution when it comes to changes in your body.

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