A Complete Blood Count (CBC) is a common blood test that provides important information about a person's overall health. It measures different components of the blood, including red blood cells, white blood cells, and platelets. Red blood cells (RBCs) carry oxygen throughout the body, and a CBC measures the number, size, and shape of RBCs. Low RBC counts may indicate anemia, while high RBC counts may suggest a bone marrow disorder or lung disease. White blood cells (WBCs) help fight infections, and a CBC measures the number and type of WBCs present. High WBC counts may indicate an infection or inflammation, while low WBC counts may suggest a weakened immune system or bone marrow disorder. Platelets are small cells that help the blood clot, and a CBC measures the number of platelets in the blood. Low platelet counts may indicate a bleeding disorder, while high platelet counts may suggest an underlying condition such as cancer. A CBC may also measure the amount of hemoglobin and hematocrit in the blood, which can provide information about the person's overall health and the potential for anemia. Overall, a CBC is a routine blood test that provides important information about a person's health status. If you have any concerns about your CBC results, it's always best to consult a healthcare professional.