A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

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 ...

Blood tests help doctors detect multiple myeloma by measuring changes in blood cells and proteins associated with bone marrow cancer. A complete blood count (CBC) can show low red blood cells or ...