Caduceus as a symbol of medicine

The caduceus is the traditional symbol of Hermes and features two snakes winding around an often winged staff. Ancient sources associate Hermes with a variety of attributes, including wisdom, trade, deception, thievery, eloquence, negotiation, and alchemy. Nevertheless it is often used as a symbol of medicine, especially in the United States.

The modern use of the caduceus as a symbol of medicine became established in the United States in the late 19th and early 20th century as a result of well-documented mistakes and misunderstandings of symbology and classical culture. Critics of this practice say that the correct symbol for medicine is the Rod of Asclepius, which has only one snake and no wings.