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Living with Balantidiasis

An infection of the large intestine by a parasite that can cause diarrhea.

Understanding Balantidiasis

Balantidiasis is an infection with parasites of the genus Balantidium.

When Balantidium is in the large intestine, it can lead to diarrhea, dysentery (bloody diarrhea), and sometimes ulcers. It can occur at any time in life.

Signs & symptoms

GARD doesn't list a symptom list. The summary describes these features:

  • Diarrhea
  • Dysentery (bloody diarrhea)
  • Ulcers in the intestine (occasionally)

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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

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

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
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
How is balantidiasis tested for?
What treatment is used for the infection?
How can I lower the chance of getting it again?

Quick facts

Symptoms usually startany time in life

It is caused by infection with Balantidium parasites in the large intestine. GARD does not list a gene or inheritance pattern.

Infectious

Also known as: balantidial dysentery; balantidiosis; ciliary dysentery; disease caused by balantidiidae

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · BalantidiasisGARD ID 809 · 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 Balantidiasis.

Explore the Balantidiasis blog

Explore research for Balantidiasis

Explore actively recruiting Balantidiasis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Balantidiasis 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 Balantidiasis 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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HealthStoryfor Balantidiasis

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

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