Botulism: Causes, Symptoms, and Treatment
Medically reviewed by Achuta Uppu, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Botulism?
An infectious disease doctor is a doctor who treats infections. This doctor often helps care for people with botulism. Treatment happens in a hospital. A team there watches your breathing and nerves. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is botulism?
Botulism is an illness caused by a toxin, which is a kind of poison, made by bacteria. The toxin attacks the body's nerves. It causes muscle weakness and paralysis, which means the muscles stop moving. It can also cause trouble breathing and even death. Botulism is a medical emergency.
The bacteria that cause botulism can be found in soil and dust. Under the wrong conditions, they can make the toxin in homemade food that was not canned safely. They can also make it in a baby's intestines.
Symptoms
Common signs and symptoms include:
- Double vision or blurry vision.
- Drooping eyelids.
- Slurred speech.
- Trouble swallowing.
- Muscle weakness.
- Trouble moving the eyes.
- Trouble breathing.
Foodborne botulism can also cause nausea, vomiting, stomach pain, and diarrhea. In a baby, signs can be constipation, poor feeding, drooping eyelids, less facial expression, and a weak cry that sounds odd. The toxin can weaken the muscles used for breathing, which can lead to death.
Causes and who gets it
Foodborne botulism comes from homemade foods that were canned, preserved, or fermented the wrong way. Wound botulism is more likely in people who inject street drugs, such as black tar heroin. It is also more likely in people who have had a serious injury or surgery. Infant botulism happens when the germ gets into a baby's intestines. There it grows and makes the toxin. Iatrogenic botulism can happen if too much botulinum toxin is injected for looks or for medical reasons. Adult intestinal toxemia is a very rare kind. Scientists do not fully understand how a person gets it.
How doctors diagnose it
Doctors diagnose botulism from the signs and symptoms. Because antitoxin works best when given early, they start treatment right away.
Treatment
Botulism is treated with antitoxin. Antitoxin keeps the toxin from causing any more harm. It works best when given early in the illness. It does not heal damage the toxin has already done. Many people need to be hospitalized. Some stay for weeks or even months while the paralysis slowly gets better. If the disease is severe, you may be put on a ventilator, a breathing machine, until you can breathe on your own. People with wound botulism might need surgery to remove the source of the bacteria. They may also need antibiotics.
When to see a doctor
Botulism is a medical emergency. Call 911 or go to the emergency room right away if you or your child has signs of botulism, such as double or blurry vision, drooping eyelids, slurred speech, trouble swallowing, muscle weakness, or trouble breathing. In a baby, a weak cry, poor feeding, or less facial expression are also reasons to go right away. Do not wait. The toxin can weaken the muscles involved in breathing, which can lead to death.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. This kind of doctor can send you straight to emergency care if botulism is possible. They can also help with wound care and long-term recovery after a hospital stay.
Common questions
Can botulism be prevented?
Yes, many cases can be prevented. Follow safe home-canning instructions, and remember that pressure canning is the only recommended method for low-acid foods. Boil some home-canned foods for 10 minutes before eating them. Refrigerate homemade garlic or herb oils. Do not feed honey to a child younger than 1 year old. Get medical care quickly for a wound that looks infected.
Why is honey dangerous for babies?
Honey can contain the bacteria that cause botulism. A baby's intestines can let the spores grow and make the toxin. Do not feed honey to a child younger than 1 year old. Most infant botulism cannot be prevented, but skipping honey removes one known source.
Does botulism treatment reverse the damage?
No. Antitoxin prevents the toxin from causing more harm, but it does not heal damage the toxin has already done. The paralysis usually improves slowly. With antitoxin and modern medical care, fewer than 5 of every 100 people with botulism die.
Who is at risk for wound botulism?
People who inject illicit drugs, such as black tar heroin, have a greater chance of getting wound botulism. People who have had a traumatic injury, such as a motorcycle crash, or surgery also have an increased risk. Keep wounds clean and get medical care quickly if one looks infected.
Sources
- Centers for Disease Control and Prevention - Symptoms of Botulism
- Centers for Disease Control and Prevention - Treatment of Botulism
- Centers for Disease Control and Prevention - Botulism Prevention
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
