Anal fissure causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Amandeep Singh M.D.[2]


Anal fissure are caused due to severe and chronic constipation, watery diarrhea and Crohn's disease. Anal fissures are common in women after childbirth, and following constipation in infants. Other less common causes include tuberculosis, sarcoidosis, anal intercourse, HIV, Human papillomavirus, and syphilis.


Life-threatening Causes

  • Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated. There are no life-threatening causes of anal fissure, however complications resulting from untreated anal fissure is common.

Common Causes

Anal fissures may be caused by:[1]

Less Common Causes

Less common causes of disease name include:[1]

Causes by Organ System

Cardiovascular No underlying causes
Chemical/Poisoning No underlying causes
Dental No underlying causes
Dermatologic No underlying causes
Drug Side Effect No underlying causes
Ear Nose Throat No underlying causes
Endocrine No underlying causes
Environmental No underlying causes
Gastroenterologic Crohn's disease, Diarrhea, Constipation, Infants constipation
Genetic No underlying causes
Hematologic No underlying causes
Iatrogenic No underlying causes
Infectious Disease HIV AIDS, Human papillomavirus,Tuberculosis
Musculoskeletal/Orthopedic No underlying causes
Neurologic No underlying causes
Nutritional/Metabolic No underlying causes
Obstetric/Gynecologic Difficult vaginal labor
Oncologic No underlying causes
Ophthalmologic No underlying causes
Overdose/Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary No underlying causes
Renal/Electrolyte No underlying causes
Rheumatology/Immunology/Allergy Sarcoidosis
Sexual Anal intercourse, syphilis
Trauma No underlying causes
Urologic No underlying causes
Miscellaneous No underlying causes

Causes in Alphabetical Order

List the causes of the disease in alphabetical order.[1]


  1. 1.0 1.1 1.2 Schlichtemeier S, Engel A (2016). "Anal fissure". Aust Prescr. 39 (1): 14–7. doi:10.18773/austprescr.2016.007. PMC 4816871. PMID 27041801.
  2. Abramowitz L, Sobhani I, Benifla JL; et al. (2002). "Anal fissure and thrombosed external hemorrhoids before and after delivery". Dis. Colon Rectum. 45 (5): 650–5. PMID 12004215.
  3. Martínez-Costa C, Palao Ortuño MJ, Alfaro Ponce B; et al. (2005). "[Functional constipation: prospective study and treatment response]". Anales de pediatría (Barcelona, Spain) (in Spanish; Castilian). 63 (5): 418–25. PMID 16266617.

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