Changes in Stool: What Your Digestive Health Might Indicate

Changes in bowel movements

Hello doctor, I don't remember when I started occasionally having stool that is approximately 2 cm in diameter.
I can't recall the timing or frequency.
From April to June, after taking cranberry probiotics for a while, I noticed that it seemed to cause diarrhea, with a yellowish liquid (similar to the color of urine after taking B vitamins) accompanied by a small amount of dark yellow paste-like stool, especially when taken on an empty stomach.
Recently, the stools have been very soft and tend to dissolve in the toilet water.
I am almost always awakened by the urge to defecate at around the same time each day.
Once, after consuming black rice, I had a bowel movement within 10 to 14 hours.
My weight hasn't changed much, and I experience hemorrhoids every six months or so, but the recent stools haven't triggered hemorrhoids.
I acknowledge that my vegetable intake is relatively low, but I consume adequate water, with starch and protein each making up half of my diet.
Could you please advise if these changes in my bowel movements indicate any underlying disease?

Doubanjiang, 30~39 year old female. Ask Date: 2022/07/15

Dr. Lin Minghui reply Gastroenterology and Hepatology

Changes in bowel movements may be caused by factors such as diet, medications, gastroenteritis, or irritable bowel syndrome, and do not necessarily indicate a serious illness.
It is advisable to pay attention to dietary habits; a high-fiber diet can help form more solid stools.
Adequate hydration, exercise, and stress management are also important.
If you continue to notice abnormal changes in your bowel movements, it may be necessary to test your stool for any abnormalities.
Wishing you good health!

Reply Date: 2022/07/15

More Info

Changes in stool consistency, frequency, and appearance can often be indicative of underlying digestive health issues. In your case, the observations you've made regarding the size and consistency of your stool, as well as the frequency of bowel movements, warrant some attention.
Firstly, the presence of thin stools, especially if they are consistently around 2 cm in diameter, can be concerning. While occasional changes in stool shape can be normal, persistent changes may suggest a narrowing of the bowel, which could be due to various reasons, including inflammation, strictures, or even more serious conditions such as colorectal cancer. However, it is essential to note that at your age (22 years), the likelihood of colorectal cancer is relatively low, but it is not impossible, especially if there are other risk factors or symptoms present.

The fact that you have experienced diarrhea, particularly after consuming certain foods or supplements like cranberry probiotics, indicates that your digestive system may be sensitive to specific dietary changes. Diarrhea can be caused by a variety of factors, including dietary intolerances, infections, or conditions like irritable bowel syndrome (IBS). IBS is a common functional gastrointestinal disorder characterized by symptoms such as abdominal pain, bloating, and changes in bowel habits, including diarrhea or constipation.

Your mention of experiencing yellow, watery stools could also suggest malabsorption issues or an imbalance in your gut microbiota, particularly if these changes coincide with the introduction of new supplements. The color of stool can vary based on diet, but persistent changes, especially if accompanied by other symptoms like weight loss or abdominal pain, should be evaluated further.

Regarding your concern about hemorrhoids, it is not uncommon for individuals with changes in bowel habits to experience hemorrhoids, especially if there is straining during bowel movements. However, if you are noticing blood in your stool or significant changes in your bowel habits, it is crucial to consult a healthcare professional for a thorough evaluation.
In terms of dietary habits, you mentioned a lower intake of vegetables, which could contribute to changes in stool consistency. A diet rich in fiber is essential for maintaining regular bowel movements and overall digestive health. Increasing your fiber intake through fruits, vegetables, and whole grains can help improve stool consistency and frequency. Additionally, staying well-hydrated is crucial, as adequate fluid intake helps soften stool and promotes regularity.

Given your symptoms and concerns, it would be advisable to schedule an appointment with a gastroenterologist. They may recommend diagnostic tests such as a colonoscopy, stool tests, or imaging studies to rule out any serious conditions and to better understand the underlying causes of your symptoms.
In summary, while changes in stool can be alarming, they are often related to dietary habits, stress, or functional gastrointestinal disorders. However, persistent changes, especially those accompanied by other symptoms, should not be ignored. Seeking medical advice is the best course of action to ensure your digestive health is properly assessed and managed.

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