I'm 30 years old, and I have hemorrhoids and realized now that I have loose stool. Can hemorrhoids cause loose stools? 1 Answer Dr. Bradley Bennett Colon & Rectal Surgeon Rockville, MD Hemorrhoids do not cause loose stools. You may want to see a colon and rectal surgeon or a gastroe...
Narrowing of the stool may be due to a mass in the colon or rectum that limits the size of the stool that can pass through it. Conditions that cause diarrhea can also cause pencilthin stools. Persistent pencil thin stool, which may be solid or loose, is one of the symptoms of colorecta...
A change in stool shape also could be cause for concern. Stools that are narrow and pencil-thin are thought by some experts to be a symptom of colon cancer. "It could be a sign of obstruction in the lower part of the colon," which means the bowel is partially blocked, getting in the...