Diseases and Conditions

Anal fissure

Causes

Common causes of anal fissure include:

  • Passing large or hard stools
  • Constipation and straining during bowel movements
  • Chronic diarrhea
  • Anal intercourse
  • Childbirth

Less common causes of anal fissures include:

  • Crohn's disease or another inflammatory bowel disease
  • Anal cancer
  • HIV
  • Tuberculosis
  • Syphilis

Related Services