A white coat or laboratory coat (often abbreviated to lab coat) is a knee-length overcoat smock worn by professionals in the medical field or by those involved in laboratory work. The coat protects their street clothes and also serves as a simple uniform. The garment is made from white or light-colored cotton, linen, or cotton polyester blend, allowing it to be washed at high temperature and make it easy to see if it is clean.
The modern white coat was introduced to medical in the late 1800s as a symbol of cleanliness[2][3]
I wear a white coat for the following reasons:
It has a lot of pockets
It protects my clothes from blood, vomit, pus and poop.
It is easy to clean.
It is laundered by my hospital.