Blood film

A blood film is a thin layer of blood spread across a glass slide that scientists and doctors examine under a microscope to study the cells and components in your blood. By staining the blood with special dyes, researchers can clearly see red blood cells, white blood cells, and platelets, making it possible to diagnose infections, anemia, leukemia, and other blood disorders. This simple but powerful technique has been a cornerstone of medical diagnosis for over a century because it provides detailed information about your health by revealing what's actually happening inside your bloodstream.