What is the reason for the groove in the stool?

Anal papilloma can also show such symptoms, normally accompanied by anal swelling, pain and discomfort, and anal prolapse after defecation. Rectal polyps may also show such symptoms, normally accompanied by abdominal pain, hematochezia and occasional diarrhea symptoms. In addition, in patients older than 40 years old can not rule out the possibility of anorectal cancer, normal will be accompanied by anal swelling, pain, hematochezia, or recent changes in defecation habits. Therefore, showing such symptoms, should be the first time to the regular hospital anorectal department for examination, to confirm the diagnosis.