First Time User? Sign Up Now
First Time User? Enroll now.
Home > Health Library > Anal Fissure and Fistula
An anal fissure is a narrow tear that extends from the muscles that control the anus (sphincters) up into the anal canal. These tears usually develop when anal tissue is damaged during a hard bowel movement or when higher-than-normal tension develops in the anal sphincters.
An anal fistula is a tubelike passage (tract) from the anal canal to a hole in the skin near the anus. This may occur after rectal surgery, after an abscess in the rectal area, or as a complication of a bowel disease.
Current as of:
February 10, 2021
Author: Healthwise StaffMedical Review: Anne C. Poinier MD - Internal MedicineAdam Husney MD - Family MedicineC. Dale Mercer MD, FRCSC, FACS - General Surgery
Current as of: February 10, 2021
Author: Healthwise Staff
Medical Review:Anne C. Poinier MD - Internal Medicine & Adam Husney MD - Family Medicine & C. Dale Mercer MD, FRCSC, FACS - General Surgery
To learn more about Healthwise, visit Healthwise.org.
© 1995-2021 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
300 Ashville Ave.
Cary, NC 27518
3100 Duraleigh Road
Raleigh, NC 27612
4207 Lake Boone Trail
Raleigh, NC 27607
10208 Cerny St.
Raleigh, NC 27617
1505 SW Cary Parkway
REX Healthcare of Cary, Suite 302
Cary, NC 27511
North Carolina Surgery2800 Blue Ridge Road, Suite 300Raleigh, NC 27607 919-784-7874 T 919-784-2708 F
Chosen for Excellence
Copyright 2021 UNC Health Care. All rights reserved.