Can Chronic Colitis Cause Narrow Stools?

Chronic colitis typically does not cause stools to become narrower. The condition primarily affects the lining of the colon and can lead to symptoms like diarrhea, abdominal pain, and rectal bleeding. However, a noticeable change in stool width is usually linked to other underlying issues rather than colitis itself.

One common reason for narrower stools is discomfort or pain during bowel movements caused by anal conditions such as hemorrhoids or anal fissures. This discomfort may cause individuals to strain less or delay bowel movements, resulting in thinner stools.

Another potential cause is related to rectal health. Conditions such as rectal tumors or rectal cancer can alter the shape of the stool. In some cases, people may notice that their stools are not only narrower but also irregular in shape. Normally, stools have a cylindrical form, but when a growth is present near the end of the rectum—such as a polyp or tumor—it can press against the passing stool and distort its shape.

It's also worth noting that while the colon plays a key role in absorbing water from digested food, it doesn't typically influence the physical structure of the stool in the same way the rectum does. Significant changes in stool shape are more commonly associated with rectal abnormalities rather than general colon inflammation.

If you experience persistent changes in your bowel habits or stool appearance, it's important to consult a healthcare professional for proper evaluation and diagnosis.