This article describes the effects of a scorpion sting.

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

• Scorpion venom

• Scorpions
• Related species

Most varieties of North American scorpions are nonpoisonous. The poisonous ones in the United States live mainly in the southwestern deserts.

In mild cases, the only symptom may be a mild tingling or burning at the site of the sting.

In severe cases, symptoms may include:

• Eyes and ears
  • Double vision
• Lungs
  • Difficulty breathing
  • No breathing
  • Rapid breathing
• Nose, mouth, and throat
  • Drooling
  • Spasm of the larynx (voice box)
  • Thick-feeling tongue
• Heart and blood
  • High blood pressure
  • Increased or decreased heart rate
  • Irregular heartbeat
• Kidneys and bladder
  • Urinary incontinence
  • Urine output, decreased
• Muscles and joints
  • Muscle spasms
• Nervous system
  • Convulsions
  • Paralysis
  • Random movements of head, eye, or neck
  • Restlessness
  • Seizures
  • Stiffness
• Stomach and intestinal tract
  • Abdominal cramps
  • Fecal incontinence (inability to pass stools)