Causes

A scorpion sting is caused by the stinger in a scorpion's tail. When a scorpion stings, its stinger can release venom. The venom contains a complex mix of toxins that affect the nervous system (neurotoxins).

Scorpions are arthropods — a relative of insects, spiders and crustaceans. Bark scorpions are about 2 inches (5 centimeters) long. Scorpions have eight legs and a pair of lobster-like pinchers and a tail that curves up. Scorpions are nocturnal creatures that resist stinging unless provoked or attacked.