White blood cells (WBCs) help the body fight infections and other health conditions as part of the immune system. Certain diseases can impact the normal WBC range among females. This article explores ...

A typical platelet count range can change with age. Platelet counts may fluctuate due to natural vascular aging, changes in bone marrow tissue, and altered blood plasma makeup. Platelets, or ...

Aplastic anemia is when your bone marrow can’t make enough healthy blood cells, including red blood cells, white blood cells, and platelets. A CBC measures blood cell levels and is used to diagnose ...

Medically reviewed by Yasmine S. Ali, MD, MSCIMedically reviewed by Yasmine S. Ali, MD, MSCI The red blood cell (RBC) count is a test that measures the number of oxygen-carrying blood cells in your ...

As a lifelong health and fitness enthusiast with 15 years of experience, Rachel MacPherson is passionate about cutting through fads and noise. Her aim is to clearly communicate health information with ...

Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

CHICAGO (Reuters) - Older patients whose red blood cell counts are even slightly out of the normal range are at higher risk of death and heart problems after major surgery, U.S. researchers said on ...

What Is the CD4:CD8 Ratio Test Used For? CD4 and CD8 are two types of white blood cells in your blood. White blood cells help your body fight infections. If you have HIV infection, your doctor may use ...