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Living with Anal fistula

An abnormal tunnel from the anus or rectum to the skin around the anus, which can cause pain and itching.

Understanding Anal fistula

Anal fistula, also called anorectal fistula, is an abnormal passageway from the anus or rectum to the surface of the skin around the anus.

A fistula is an abnormal tunnel in the body. Other types include internal fistulas, between two internal organs, and colonic fistulas, from the colon to the skin or another organ. Women may have rectovaginal fistulas, between the anus or rectum and the vagina. It can happen at any time in life.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Pain around the anus
  • Itching
  • Skin infection (cellulitis)
  • A fistula opening near the anus

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include digestive system specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Digestive system specialists (gastroenterologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What type of fistula do I have?
What are my treatment options?
Which specialists, such as a colorectal surgeon, should I see?

Quick facts

Symptoms usually startany time in life

GARD doesn't describe a cause for this condition yet.

Gastrointestinal

Also known as: anal fistula (disease); anorectal fistula; fistula in ano; fistula of anus; fistula-in-ano

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Anal fistulaGARD ID 20568 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Anal fistula.

Explore the Anal fistula blog

Explore research for Anal fistula

Explore actively recruiting Anal fistula studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Anal fistula with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

Powered by HealthSpark, our AI chat helper

I can help you find recruiting Anal fistula studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your Anal fistula experiences more deeply and prepare for better conversations with your doctors and care team.

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