Stool indentations can be caused by colon lesions, or rectal lesions, or hemorrhoids. It is specifically recommended to go to the hospital for a checkup to be sure.
Some colon lesions such as colon polyps and colon cancer can cause a change in the character of the stool. When the stool passes through the location of the colon lesion, it causes the lesion to squeeze the stool, which leads to indentation of the stool and the appearance of spaghetti-like, pencil-like and other fecal traits.
Similarly, rectal lesions can also lead to lesions on the stool extrusion deformation, common diseases such as rectal polyps, rectal cancer. Hemorrhoids lead to indentation of stool mainly because when the stool comes out, the hemorrhoids squeeze the stool due to hard defecation.
So once the symptoms of indentation should be important, especially with abdominal pain, diarrhea, mucus, pus and blood stools, etc. to seek medical attention, so as not to delay the condition.