The FBC, or Full Blood Count, is probably the most requested blood test in the world. If a doctor has ever taken your bloods, an FBC was almost certainly part of it. Yet most people are handed their results with a page of abbreviations, from Hb to MCV to neutrophils, and no real explanation of what any of it means. This guide fixes that: what an FBC measures, what each marker does, and how to make sense of high or low results. What Is an FBC Blood Test? A Full Blood Count mea