The original starched white nurses’ uniform was said to convey an air of professionalism and cleanliness. Nursing scrubs became common once doctors began to shed their conventional street clothes for comfortable cotton shirts and pants to prevent the spread of bacteria and germs. Medical scrubs have since gone through a range of colors. White, although thought to be sterile, was easily susceptible to stains and blood spatters. Green soon took its place, as it was thought to be gentler on the eye. Various shades of blue followed. Today, medical scrubs are available in a huge assortment of colors and prints. White is still considered the more formal version of medical apparel.