Skip to content
knowrare
HealthSignal
Your condition community

Living with Botulism

A serious infection from a bacterial toxin that weakens or paralyzes muscles.

Understanding Botulism

Botulism is a serious illness caused by botulinum toxin, made by the bacterium Clostridium botulinum.

People are usually infected by eating contaminated food or through a contaminated wound. The toxin leads to muscle paralysis, which can affect breathing. It can occur at any time in life.

Signs & symptoms

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

  • Double vision
  • Trouble swallowing and speaking
  • Muscle weakness or paralysis
  • Dry mouth and constipation
  • Nausea, vomiting, or belly pain
  • Breathing difficulty

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 brain and nervous system specialists and eye disease specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Eye disease specialists (ophthalmologists)
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 The Infant Botulism Treatment and Prevention Program
  • 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 botulism confirmed with testing?
What care is needed if breathing is affected?
How can we avoid exposure to contaminated food or wounds?

Quick facts

Symptoms usually startany time in life

It is caused by botulinum toxin produced by Clostridium botulinum. People are usually infected by eating contaminated food or through a wound.

InfectiousNeurological

Also known as: botulism poisoning; infection caused by clostridium botulinum; infection due to clostridium botulinum; lame sickness

Patient organizations

Source: NIH GARD · BotulismGARD ID 943 · 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 Botulism.

Explore the Botulism blog

Explore research for Botulism

Explore actively recruiting Botulism studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Botulism 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 Botulism 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.

Get Signals for Botulism

Stay in the loop with community stories and updates from medical researchers.

HealthStoryfor Botulism

Create a living journal that talks back

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

Start your Botulism journal

Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.