A CBC is a common procedure that measures the different components in the blood. Doctors will measure different blood cell levels and compare them with the expected levels for a person of the same age ...

Your doctor will usually check your red blood cell count together with your other blood cell counts to look for conditions that cause low counts (anemia) or high counts. Many health conditions can ...

Leukemia starts in the bone marrow and can crowd out healthy cells, replacing them with abnormal leukemic cells. This often lowers red blood cell and platelet counts, causing fatigue and easy bleeding ...