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 ...

What a low white blood cell count really means Leukopenia, or low white blood cell count, can leave your body more vulnerable ...

Red blood cells transport oxygen throughout your body, including to vital organs and tissues. They also help your body get rid of carbon dioxide. Too little or too many red blood cells may be ...

Doctors monitor lymphocyte and other blood cell levels to predict how your lymphoma will progress. Low lymphocyte counts may suggest that cancer has spread to your bone marrow, or it can be a side ...

Your blood serves numerous roles to maintain your health. To carry out these functions, blood contains a multitude of components, including red blood cells that transport oxygen, nutrients and ...

Medically reviewed by Anju Goel, MD Key Takeaways CD4 counts show how strong your immune system is; lower counts mean a ...

Leukemia is a blood cancer with abnormal white blood cell overproduction, affecting red blood cells and platelets, leading to anemia and infection risks. Diagnosis involves blood tests, bone marrow ...

In medicine, a person’s blood-test results are compared with the average range in a population. But results are highly individual and tightly regulated around a person’s own stable values. Changes to ...