A normal white blood cell range for adults is between 4,500 and 11,000 cells per microliter (μL). The ranges tend to be higher in children, and they are based on age.

The innate immune response is the body's first line of defense against infection, and a successful immune defense takes a ...

Blood types depend on the content of the blood cells and are inherited from parents. There are eight main types. Which type you have affects how you can receive blood.

Leukocytosis is when you have too many white blood cells. Learn about leukocytosis, including what causes it, how it is diagnosed, and which conditions are associated with it.

Shorter telomeres on the ends of white blood cell chromosomes may signal a heightened dementia risk, suggest the results of a large, long-term study by researchers at Hangzhou Normal University ...

White blood cell numbers can be cut by health conditions or treatments like chemotherapy. Yale scientists have now discovered a molecule that can be given to quickly boost their numbers back up ...

Normal white blood cell levels typically range from 4,500 and 11,000 per microliter of blood for most healthy adults who aren’t pregnant. Having white blood cell levels above this range can be a ...

White blood cells. White blood cells help fight infection. If your body makes a lot of abnormal white blood cells, they can prevent normal healthy cells from developing. So you are more likely to get ...

Eosinophils are specialized white blood cells that curb infection and boost inflammation. If you have too many, it’s called eosinophilia. Learn how EOS blood tests can help diagnose allergic ...

White blood cells or WBCs make up about one percent of the cells in your blood, and they're responsible for fighting infection. A very low white blood cell count could put you at higher risk of ...