When to Go to the ER After a Scorpion Sting

May 31, 2025

Not All Stings Are Equal—Here’s What to Watch For

Living in the Southwest, especially in places like Phoenix, Las Vegas, or El Paso, means the occasional scorpion sighting is just part of life. And while most stings from U.S. scorpions aren’t life-threatening, the Arizona bark scorpion is a notable exception. If you or someone in your home gets stung, it’s important to know when you can monitor it at home—and when to drop everything and head to the ER.

ER-Worthy Symptoms After a Scorpion Sting

If you notice any of these symptoms, don’t wait it out:

For Children

Children are at the highest risk from scorpion venom. Take them to the ER if they show:

Uncontrolled jerking or twitching
Trouble swallowing or excessive drooling
Slurred speech or inability to talk
Sweating without exertion
Vomiting or extreme agitation

Even if symptoms seem to calm down, complications can escalate quickly in children. When in doubt—go.

For Adults

Adults can usually tolerate a bark scorpion sting, but go to the ER immediately if you experience:

Difficulty breathing
Muscle twitching or spasms
Unusual eye movements
Numbness spreading beyond the sting site
Chest pain or irregular heartbeat

Special Considerations

Pregnant Women

While most pregnant women recover well from stings, venom reactions could lead to dehydration, contractions, or reduced fetal oxygen. If you’re pregnant and get stung—especially in the second or third trimester—head to the ER or at least call your OB right away.

Older Adults & People with Health Conditions

Anyone with heart conditions, asthma, or a weakened immune system should treat a sting seriously. Scorpion venom affects the nervous system, and underlying issues can make things worse.

What to Expect at the ER

If symptoms are serious, you may be given Anascorp, the FDA-approved antivenom for Arizona bark scorpions. It’s usually reserved for moderate to severe cases and works fast to neutralize the venom. Many patients recover fully within hours of receiving it.

For milder symptoms, ER staff may monitor your vitals, provide pain relief, and keep you under observation until symptoms subside.

When You Can Treat at Home

If the only symptoms are mild tingling, localized swelling, or pain at the sting site—and the person stung is a healthy adult—you can:

Wash the area with soap and water
Apply a cool compress
Take over-the-counter pain relievers like ibuprofen or acetaminophen

Keep a close eye out for any changes over the next several hours. If symptoms escalate, don’t wait—get to the ER.

Final Thought

In the desert Southwest, scorpion stings are a real part of life—but knowing when to take them seriously can make all the difference. When you catch stings early and respond fast, especially in vulnerable people, outcomes are almost always good.

For even more peace of mind, our plug-in Scorpion Detectors scan your floors with UV light and a smart camera while you sleep—so you’ll know about a scorpion before you step on it.

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Do scorpions avoid UV light?

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Not much is known about why scorpions glow under UV light, but some theories suggest that although they can't see it, they can 'feel' it when it's bright. Our Scorpion Detectors emit just enough UV light to illuminate them, but not enough to make them avoid it.

Are scorpions in Arizona and Texas dangerous?

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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:

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What do scorpions eat?

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Scorpions are carnivorous, primarily feeding on insects, spiders, and other small arthropods. Larger species may eat lizards, snakes, or small mammals. They use their pincers to capture prey and inject venom to subdue it before digesting externally.