Have you ever noticed that whenever you enter an operation theatre (OT), one thing is always there—the surgeon’s green or blue surgical scrubs? These colours aren’t chosen by chance. There’s a fascinating mix of science, eyesight, and safety behind this choice. Green and blue scrubs help doctors stay focused, reduce eye strain, and see blood more clearly during long operations. Here’s why these cool shades have become the universal look of modern surgery.
Why Surgical Scrubs Are Green or Blue
When surgeons look at red for hours, their eyes become sensitive and fatigued. If they suddenly shift their focus to something white, the brain creates a greenish after-image, which can be distracting. Decades ago, surgeons wore white coats, and many experienced dizziness and visual strain during long procedures. Switching to green and blue solved this problem. These colours balance the intense red, reduce visual stress, and help surgeons see more accurately.
Better Visibility, Better Focus
Green and blue are complementary to red, which makes red stand out sharply against them. Even small drops of blood are easier to identify on green or blue fabric. This clarity helps surgeons work with greater precision, especially during long and demanding surgeries. These cooler shades also create a calmer environment, lowering stress and helping doctors maintain focus for extended periods. Today, hospitals even use different shades of scrubs to distinguish departments—general surgeons often wear green, neurosurgeons prefer blue, and paediatric surgeons may use softer colours like light blue or pink.