Bowel Movement Changes: When to Seek Help - Gastroenterology and Hepatology

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Bowel movement issues


I have a bowel movement every 2-3 days, usually 1-2 times, and they are typically in a cylindrical shape.
Occasionally, the first bowel movement is not completely evacuated, and after a few hours, I will have another one that is cylindrical in the front and soft and mushy in the back.
The color is normal, brown.
Recently, I have noticed that the thickness of my stools varies; when they are thick, they resemble a banana, and when they are thin, they are about the thickness of my index finger.
I would like to know if this is a problem.
I do not experience abdominal pain before bowel movements.

amada, 50~59 year old female. Ask Date: 2022/08/25

Dr. Chen Shidian reply Gastroenterology and Hepatology


You can increase your intake of fruits and vegetables and monitor your condition, and/or check for occult blood in the stool.

Reply Date: 2022/08/25

More Info


When it comes to changes in bowel movements, understanding the nuances of what is considered normal and when to seek medical attention is crucial. Based on your description, you typically have bowel movements every 2-3 days, with a mix of normal, sausage-shaped stools and softer, mushy stools. The color of your stools is normal, which is a good sign. However, you have noticed some variability in the thickness of your stools, with some being as thick as a banana and others as thin as a finger.

Firstly, it’s important to note that variations in stool consistency and shape can be influenced by several factors, including diet, hydration, stress levels, and overall gut health. The Bristol Stool Scale categorizes stools into seven types, with types 3 and 4 being considered ideal. Type 3 is sausage-shaped with cracks on the surface, while type 4 is smooth and soft, resembling a sausage or snake. Your description of stools that are sometimes thicker and sometimes thinner suggests that you might be experiencing normal fluctuations, especially if you are not experiencing any accompanying symptoms like abdominal pain, blood in the stool, or significant weight loss.

However, the fact that you have observed a change in the consistency and shape of your stools warrants some attention. While occasional changes in bowel habits can be normal, persistent changes could indicate underlying issues. For instance, a sudden change in stool consistency, particularly if it becomes consistently thinner or if you start experiencing other symptoms like abdominal pain, bloating, or changes in appetite, could be a sign of gastrointestinal conditions such as irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), or even colorectal cancer in more severe cases.

Given that you mentioned not experiencing abdominal pain before bowel movements, this is a positive sign. Painful bowel movements can often indicate issues such as hemorrhoids, anal fissures, or more serious conditions. However, the absence of pain does not entirely rule out the need for further evaluation, especially if the changes in your bowel habits persist.

In your case, since you are observing variations in stool thickness but do not have any alarming symptoms, it may be reasonable to monitor your bowel habits for a while longer. Keep a record of your bowel movements, noting any changes in frequency, consistency, and any accompanying symptoms. If you notice that the changes persist for several weeks, or if you develop any new symptoms such as abdominal pain, blood in your stool, or unexplained weight loss, it would be prudent to consult a healthcare provider.

Your healthcare provider may recommend a stool analysis or other diagnostic tests to rule out any underlying conditions. In some cases, they may suggest a colonoscopy, especially if there is a family history of colorectal cancer or if you are over the age of 50.
In summary, while occasional changes in bowel movements can be normal, it is essential to pay attention to your body and seek medical advice if you notice persistent changes or develop new symptoms. Maintaining a balanced diet, staying hydrated, and managing stress can also contribute positively to your digestive health. If you have any concerns or questions, don’t hesitate to reach out to a healthcare professional for personalized advice.

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