Blood in Stool: Causes and Solutions for Your Symptoms

Rectal bleeding

Yesterday, my stool was diarrhea and appeared black, and this morning it changed to dark red, still with diarrhea.
My diet has been relatively bland these past few days, and I experience slight pain in the lower right abdomen when walking.
What type of symptoms could this indicate, and what do you recommend to improve the situation?

Ayang, 20~29 year old female. Ask Date: 2019/12/19

Dr. Ke Fangxu reply Surgery

At 23 years old, this phenomenon is often caused by the content of food leading to abnormal stool color.
Of course, the possibility of gastrointestinal bleeding is not zero.
It is recommended to start with a light diet and avoid red meat and dark-colored fruits and vegetables.
If symptoms persist without improvement, it is important to consult a physician for examination and treatment.

Reply Date: 2019/12/19

More Info

When it comes to the presence of blood in stool, particularly when accompanied by changes in stool color and abdominal pain, it is essential to approach the situation with caution. The symptoms you describe—black stools followed by dark red stools, along with diarrhea and mild pain in the lower right abdomen—can indicate several potential underlying issues.

Firstly, the color of the stool is significant. Black stools, known as melena, often suggest that there is bleeding occurring in the upper gastrointestinal tract, such as the stomach or duodenum. This bleeding can be due to various causes, including peptic ulcers, gastritis, or even esophageal varices. The dark color results from the digestion of blood as it passes through the intestines. On the other hand, dark red stools typically indicate bleeding from the lower gastrointestinal tract, such as the colon or rectum. This could be due to conditions like hemorrhoids, diverticulosis, or inflammatory bowel disease (IBD).

The presence of diarrhea adds another layer of complexity. Diarrhea can be caused by infections (viral, bacterial, or parasitic), food intolerances, or inflammatory conditions. Given that you mentioned your diet has been relatively bland, it may be less likely that food is the primary culprit, but infections should still be considered.

The mild pain in your lower right abdomen could be indicative of several conditions, including appendicitis, especially if the pain worsens or is accompanied by fever, nausea, or vomiting. Other possibilities include inflammatory bowel diseases like Crohn's disease, which can cause localized pain and changes in bowel habits.

Given these symptoms, it is crucial to seek medical attention promptly. A healthcare provider will likely perform a thorough evaluation, which may include a physical examination, blood tests, and possibly imaging studies or endoscopy to determine the source of the bleeding and the cause of your symptoms.

In the meantime, here are some general recommendations to help manage your symptoms:
1. Stay Hydrated: Diarrhea can lead to dehydration, so it's essential to drink plenty of fluids. Oral rehydration solutions can be beneficial.

2. Monitor Your Symptoms: Keep track of any changes in your symptoms, including the frequency of diarrhea, the appearance of your stools, and any changes in abdominal pain.

3. Avoid Certain Foods: While your diet has been bland, it may be helpful to avoid dairy products, caffeine, and high-fiber foods until your symptoms improve, as these can sometimes exacerbate diarrhea.

4. Rest: Allow your body to recover by getting plenty of rest.

5. Seek Medical Attention: If you experience severe abdominal pain, fever, or if the bleeding worsens, seek medical help immediately.

In conclusion, while there are various potential causes for your symptoms, it is crucial to consult a healthcare professional for an accurate diagnosis and appropriate treatment. Blood in the stool should never be taken lightly, and timely medical intervention can help prevent complications and address any underlying conditions effectively.

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