Caduceus
The staff of Hermes entwined by two serpents and topped with wings, originally a herald's wand symbolising negotiation and commerce, later confused with the rod of Asclepius.
The Meaning of Caduceus
The caduceus belonged to Hermes, messenger of the gods and patron of travellers, merchants, and thieves. According to one tradition, Hermes received the staff from Apollo in exchange for the lyre he had invented from a tortoise shell. When Hermes encountered two serpents fighting, he thrust his staff between them, and they coiled around it in peace. Tiresias similarly separated mating serpents with his staff, though his tale had different consequences. The caduceus served as the badge of heralds and ambassadors throughout Greece, granting safe passage even in wartime. Iris, the other divine messenger, carried a similar staff. The symbol should not be confused with the Rod of Asclepius, which bears only a single serpent and is the true symbol of medicine.
Parents
Hermes, Apollo
Symbols
Fun Fact
The US Army Medical Corps accidentally adopted the caduceus (Hermes' commerce staff) instead of the Rod of Asclepius (the actual medical symbol) in 1902, and the mistake stuck. Most American hospitals now use the wrong symbol — two snakes instead of one — while European medical institutions correctly use Asclepius's single serpent. It's history's most influential typo.
Words We Inherited
English words and phrases that trace back to this myth. See our full guide to English words from Greek mythology.
Explore Further
Rod of Asclepius
💭 conceptmedicine, healing
A serpent-entwined staff carried by Asclepius, the god of medicine, serving as the authentic ancient symbol of healing and medical practice.
Ophiuchus
💭 conceptastronomy, healing
The serpent-bearer constellation identified with Asclepius, who learned to resurrect the dead and was placed in the sky by Zeus after being struck down for overstepping mortal limits.
Thyrsus
💭 conceptArtefact
A fennel staff wound with ivy and tipped with a pine cone, the sacred wand of Dionysus and his followers
God of Healing
💭 conceptHealing, medicine, plague, purification
Apollo and his son Asclepius govern healing — Apollo as the source of medical knowledge and Asclepius as its practitioner.
God of Commerce
💭 conceptCommerce, trade, merchants, negotiation
Hermes oversees commerce and exchange, protecting merchants, contracts, and the flow of goods across borders.
Bow of Apollo
💭 conceptArtefact
The silver bow of the god Apollo, bringer of both plague and healing through its far-reaching arrows
God of Messengers
💭 conceptMessages, travel, boundaries, commerce, thieves
Hermes serves as divine messenger and psychopomp, escorting both words and souls between worlds.
Kibisis
💭 conceptArtefact
The magical satchel given to Perseus to safely contain the severed head of Medusa
Harpe
💭 conceptArtefact
An adamantine sickle-sword used by both Kronos and Perseus to accomplish their most famous deeds
Trident of Poseidon
💭 conceptArtefact
The three-pronged weapon of the sea god, capable of causing earthquakes and summoning storms
Perseus and Medusa
💭 conceptNarrative
The hero's quest to slay the mortal Gorgon and his ingenious use of divine gifts to accomplish the impossible
Golden Bough
💭 conceptArtefact
A magical branch of gold that granted the living safe passage into and out of the underworld