A complete blood count (CBC) is a simple yet crucial blood test which acts as your body’s disease detector. It is one of the most commonly recommended tests that scans through your blood components like red blood cells (RBC), white blood cells (WBC), and platelets to reveal any health issues that your body might be harboring silently. The CBC test also serves as an important inclusion in your routine health check ups. Here’s more on what you must know about the CBC test, its various parameters, who should get tested and when to worry.