What does the snake logo on an ambulance mean?

The serpentine symbol is called the Serpent Staff, also known as the Star of Life, and is the international symbol of the Emergency Medical Services (EMS) system.

Asklepios was the god of medicine in Roman mythology. He is depicted holding a wooden rod entwined with a spirit snake. The Greeks associated this symbol with medicine because snakes shed their skin every year, which was always considered a process of recovery and renewal. The stick represents the vertebrae of the human body, which is also the location of the middle chakra. It represents the upward movement of the spiritual energy in a double helix as it rises along the middle chakra. In ancient times, snakes were revered as sacred, especially in hospitals located in medical spas. It is said that when ancient Rome was plagued by the plague, the people brought in Achilles, who had taken the form of a giant snake, and the plague immediately disappeared.

The health care emergency response system should standardize its logo, including first aid uniforms, badges, armbands and vehicle passes, to ensure that public **** health emergency response teams can arrive at the scene safely and smoothly at the first time. In the past, the snake and the magic wand were the symbols of the ancient doctors abroad, because the medical technology at that time was still in the stage of mixing with witchcraft and animal self-healing, so it was long represented by these two things, and the modern world Red Cross was established, and the design of the logo used these two things as the logo, and then has been used to the present day.

Extended information:

Ancient Greek legend

Asklepios, the founder of ancient Greek medicine, legend has it that he was the son of Apollo, the god of the sun, and the mortal Koroni, who once studied medicine under Kailon, who was a highly skilled healer. One day, he was contemplating a case, a poisonous snake crawled, coiled in his hand on the battle, Asklepios was shocked, and immediately killed the snake, who knew that at this time there is a poisonous snake, the mouth of the herb, ambushed the dead snake, with the herb on the dead snake, the result is that the dead snake resurrected. 

When Asclepius saw this, he immediately realized that snakes are poisonous and can kill people, but they also have mysterious healing powers that can save people, so it's no wonder that people have always thought of snakes as the embodiment of wisdom. From then on, Asklepios to go to all parts of the medical practice, not only to carry a hand weapon, but also in the cane always put a coiled snake. Once the word spread, people engaged in the medical profession have followed suit, so the "snake cane" has become a symbol of the Western medical profession. In the old days, the KMT medical officer's lapel pin was the "snake staff" emblem.

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Baidu Encyclopedia - Snake Staff