What many people take as a plus sign on various medical logos is actually the sign of Red Cross, an international organization in the field of medicine. The Red Cross’ symbol is a hugely well-known medical symbol. You’ll often see it displayed on hospitals and other medical facilities. Like the sign of the Red Cross, the snake around a rod symbol is also a famous medical symbol. It represents the ancient mythical god of medicine: Aesculpius and is the official symbol of the American Medical Association as well as many other renowned institutions related to medicine. If you are looking for medical logos that people are already familiar with and can give you instant recognition, these two are a great choice.