Anal Tear Incidence
Facts about an anal fissure:
- Anal fissures are very common, but the true incidence is unknown.
Continue to Anal Tear Symptoms
- Jonas M, Scholefield J. Anal fissure (chronic). Clin Evid. 2004 Dec;(12):581-90. 
- Lawes D, Taylor I. Recent randomised trials in colorectal disease. Colorectal Dis. 2005 Jan;7(1):8-17. 
- Nelson R. Operative procedures for fissure in ano. Cochrane Database Syst Rev. 2005 Apr 18;(2):CD002199.