"CBC Analysis: A Hidden Mirror of Overall Health" A complete blood count (CBC) is one of the most important and frequently requested medical tests in laboratories. It provides a comprehensive overview of blood components, reflecting overall health. Despite its simplicity, this test is considered a "hidden mirror" that can reveal many diseases that may not be clinically apparent. What is a CBC? A CBC is a laboratory test that measures the main components of blood: Red blood cells (RBCs) White blood cells (WBCs) Hemoglobin (Hb) Hematocrit (HCT) Platelets Additional indicators such as MCV, MCH, MCHC, RDW, and others. Why is a CBC considered a hidden mirror? Because changes in the values ​​within this test can be the first indication of health problems such as: Anemia (low hemoglobin and hematocrit) Bacterial or viral infections: Elevated or decreased white blood cell count. Bone marrow diseases or coagulation disorders: Changes in platelet count. Vitamin and mineral deficiencies: Such as iron or vitamin B12 deficiency, which affects MCV (mega-volume of red blood cells). The importance of CBC analysis in early diagnosis: Doctors use CBC analysis as a primary tool for assessing health, especially when symptoms such as fatigue, paleness, bleeding, recurrent infections, or even as a routine check-up, are present. It helps to: Guide the doctor toward the correct diagnosis. Identify the need for further testing. Al-Mustaqbal University, the leading university in Iraq.