Normal blood counts fall within the range that has been established by testing healthy men and women of all ages. The cell counts are compared to those of healthy individuals of similar age and sex.

White blood cells, also called leukocytes, are an important part of the body’s immune system. These cells help fight infection, aid in healing from trauma, and assist in recovery from disease. A high ...

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 ...

A high red blood cell count can occur for many reasons, including excessive cell production, changes in blood volume, or underlying medical conditions. Sometimes, the cause is unknown. Erythrocytes, ...

Keeping one's blood pressure levels in the normal range is important. Blood pressure that's too high (hypertension) can cause severe headaches, blurred vision and may even lead to heart disease or ...

DEAR DR. ROACH: I have been confused about what normal blood pressure is for me (or anyone). I know there are some issues on what normal is today, but let us say that normal is 120/80 mm Hg. Does this ...

When it comes to maintaining health, it can be helpful to understand an optimal baseline for some matters. Learning a healthy weight range for your height, age, and gender, for instance, can be useful ...

Because leukemia is a blood cancer, it can affect a person’s platelet count. People with leukemia sometimes have a low platelet count. However, other conditions can also cause low platelets. Leukemia ...