Yellow and Black Stool: GERD and Potential Concerns

Stool that is yellow with black streaks and gastroesophageal reflux?

Hello doctor, two months ago I underwent an upper gastrointestinal endoscopy which diagnosed me with gastroesophageal reflux disease and Barrett's esophagus, but I do not have Helicobacter pylori or any gastric ulcers.
Since then, my stool has consistently been yellow with several black specks (mostly still yellow), but there is no pain during bowel movements, and there is no blood, so it shouldn't be hemorrhoids.
The shape of my stool varies between pellet-like and sausage-shaped.
My doctor mentioned that there might be minor upper gastrointestinal bleeding and advised me not to worry.
However, today my stool, while still yellow with black, had two dark red spots (most of it is still black).
I am a bit concerned that this could be a sign of colon cancer, but I am only 17 years old and no one in my family has had colon cancer (though my grandfather had colon polyps).
Could you please explain what might be causing the color of my stool? Should I undergo tests such as a fecal occult blood test or a colonoscopy? Thank you, doctor!

Lin Shi He, 10~19 year old female. Ask Date: 2022/11/11

Dr. Chen Shidian reply Gastroenterology and Hepatology

It is unlikely to be related to colorectal cancer; further observation is sufficient.

Reply Date: 2022/11/11

More Info

It sounds like you have a number of concerns regarding your gastrointestinal health, particularly in relation to your recent diagnosis of gastroesophageal reflux disease (GERD) and the changes you've noticed in your stool. Let's break down your concerns and provide some clarity.

Firstly, the presence of yellow stool with black specks can be indicative of several things. Yellow stool is often associated with the malabsorption of fats, which can occur in conditions affecting the pancreas or the intestines. The black specks could be due to the consumption of certain foods, such as blueberries or black licorice, or they could be related to the presence of blood that has been digested, which can appear black due to the breakdown of hemoglobin.
Your doctor mentioned the possibility of small upper gastrointestinal bleeding, which is a valid concern, especially given your history with GERD and Barrett's esophagus. Barrett's esophagus is a condition where the lining of the esophagus changes due to chronic acid exposure, and while it can increase the risk of esophageal cancer, it does not directly cause changes in stool color. However, it is essential to monitor any gastrointestinal symptoms closely.

Regarding the appearance of dark red spots in your stool, this can be more concerning. Dark red or maroon-colored spots may suggest the presence of fresh blood, which could indicate bleeding in the lower gastrointestinal tract. While you are young and your family history does not suggest a high risk for colorectal cancer, it is still important to take any changes in bowel habits seriously, especially if they are accompanied by other symptoms such as abdominal pain, weight loss, or changes in appetite.

Given your age and the family history of colorectal polyps, it would be prudent to discuss further testing with your healthcare provider. A fecal occult blood test (FOBT) can help determine if there is hidden blood in your stool, and if necessary, a colonoscopy may be recommended to visualize the colon and rule out any serious conditions, including polyps or cancer.

In summary, while your symptoms may not immediately suggest a serious condition, the changes in your stool warrant further investigation. It is always better to err on the side of caution when it comes to gastrointestinal health. Make sure to communicate openly with your healthcare provider about your concerns, and do not hesitate to seek a second opinion if you feel it is necessary. Regular monitoring and appropriate testing can help ensure that any potential issues are caught early, allowing for timely intervention if needed.

Similar Q&A

Understanding Black Specks in Stool: When to Seek Medical Advice

Hello Doctor: I am a 26-year-old male and have been experiencing gastroesophageal reflux and upper gastrointestinal issues for the past two weeks. I have sought medical attention and am currently taking medication for ulcers and enzymes. I have also consulted a psychiatrist and a...

Dr. Lin Minghui reply Gastroenterology and Hepatology
Hello, there is mild pressure in the lower left abdomen. The abnormal dark color of the stool may be related to the food consumed. An abnormal stool can be evaluated through a stool test to check for any issues; if abnormalities are found, further examination is necessary. Anxiet...

Understanding Pale Stools: What They Indicate About Your Health

Hello Doctor: For the past two months, I have been experiencing discomfort in my abdomen, often feeling the urge to burp and a sensation of something being stuck in my chest and throat. My bowel movements have been irregular, sometimes constipated and other times slightly loose (...

Dr. Chen Shidian reply Gastroenterology and Hepatology
It is likely not a biliary or pancreatic issue (which would be associated with jaundice or weight loss), so there is no need to worry excessively.

Understanding Abdominal Pain and Bowel Issues: A Gastrointestinal Perspective

Hello Doctor: For the past month, I have been experiencing frequent yellow, unformed watery stools, occasional sharp abdominal pain, and almost no appetite. I feel an urgent need to use the bathroom both on an empty stomach and within half an hour after eating. My stool output is...

Dr. Cai Anshun reply Gastroenterology and Hepatology
Hello: If there are changes in bowel habits, it is advisable to first examine dietary habits for any necessary adjustments. If no cause is identified, a follow-up visit to a gastroenterologist is recommended to determine if further stool tests or endoscopic examinations are neede...

Understanding Black and Yellow Stool: Causes and When to Seek Help

In the past three weeks, my stool has had small black specks, while the rest is a yellowish-brown color. What could be the reason for this?

Dr. Lin Minghui reply Gastroenterology and Hepatology
The color of stool is related to gastrointestinal function and the foods consumed. Biliary obstruction can lead to lighter-colored stools. Consuming iron-rich foods, such as dark vegetables, can result in darker stools; for example, eating red dragon fruit may cause the stool to ...