In Greek mythology, the Rod of Asclepius , also known as the Staff of Asclepius (sometimes also spelled Asklepios or Aesculapius) and as the asklepian, is a serpent-entwined rod wielded by the Greek god Asclepius, a deity associated with healing and medicine. The symbol has continued to be used in modern times, where it is associated with medicine and health care, yet frequently confused with the staff of the god Hermes, the caduceus. Theories have been proposed about the Greek origin of the symbol and its implications.