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What Does Scorpion Venom Do To The Human Body?

May 31, 2025

scorpion sting on skin

If you've ever worried about a scorpion sting, you're not alone—especially in the U.S. Southwest, where encounters with venomous species like the Arizona bark scorpion aren't rare. But what exactly does scorpion venom do once it enters your body?

The Basics of Scorpion Venom

Scorpion venom is a complex mix of neurotoxins, enzymes, and other compounds designed to paralyze or kill small prey. When injected into humans, the venom interacts with the nervous system, often causing intense pain and a variety of systemic symptoms.

Most stings in the U.S. come from species whose venom causes only localized pain and swelling. However, a sting from the Arizona bark scorpion (Centruroides sculpturatus) can be much more serious, especially for children, older adults, and people with underlying health conditions.

Common Symptoms After a Sting

For most healthy adults, a scorpion sting will cause:

These symptoms usually peak within a few hours and resolve on their own.

More Serious Reactions

In more vulnerable individuals, or in cases of a large venom dose, symptoms can progress to:

According to the Arizona Poison and Drug Information Center, about 200 people are stung by bark scorpions each year in Arizona alone. While fatalities are extremely rare in the U.S. thanks to access to medical care and antivenom, the experience can still be traumatic.

When to Seek Medical Help

Always seek emergency medical attention if:

Even for milder stings, it’s a good idea to call your local poison control center for guidance.

How to Reduce Your Risk

The best way to avoid a scorpion sting is to prevent scorpions from getting inside your home in the first place. That includes sealing cracks, keeping outdoor areas clean, and using tools like our Scorpion Detectors, which can catch scorpions as they move along baseboards in the dark.

If you do receive an alert from your Detector, grab a UV flashlight and track the scorpion down before it disappears. The faster you find it, the less chance it has to sting someone.

Scorpion venom may be nature's weapon, but with knowledge and preparation, it doesn't have to be a threat. Knowing how your body might react—and what to do about it—is the first step in staying safe.

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Frequently Asked Questions

What are Scorpion Alerts?

Scorpion Alerts are instant notifications sent to your phone when a Scorpion Detector identifies a scorpion inside your home. Each alert includes a photo and the location of the sighting, so you know exactly where the scorpion was detected and can take action right away. These alerts are designed to give families peace of mind and help prevent stings by making sure you’re aware of scorpions before they become a danger to children or pets.

Are scorpions in Arizona and Texas dangerous?

Most scorpions aren’t deadly, but the Arizona bark scorpion, which is found in multiple states across the Southwest, can cause intense pain, numbness, and even breathing difficulties—especially for children and pets. Read more about the dangers associated with scorpions:

Do scorpions have good eyesight?

Scorpions have poor eyesight, with 2-12 simple eyes that detect light and movement but not detailed images. They rely more on vibrations sensed through hairs on their body and pincers.