When you hear the word doctor, what will appear in your head? Injecting, taking medicine, stethoscope, thermometer. Whatever it is, one thing is certain to emerge, and that is the doctor's lab coat. A white coat is almost a symbol of a doctor. This feature is so representative that you only need to see a person wearing a white coat, whether a scientist or anyone else, a little nervous. So the question comes, why do doctors always wear white protective coats? How did this symbol come into being?Now,let’s talk about why doctors wear white protective lab coats.