White blood cells fight infection. If someone has a high white blood cell count, they may have an underlying condition, such as an infection or cancer. Learn more.

White blood cells (also called leukocytes or immune cells) are cells which form a component of the blood. They help to defend the body against infectious disease and foreign materials as part of ...

A normal white blood cell count is 5,000 to 10,000 for people assigned male at birth and 4,500 to 11,000 for people assigned female at birth. Some health conditions can affect your WBC count.

Sometimes, diseases or infections can cause low white blood cell counts. Increasing white blood cells involves treating the underlying cause, diet, medications, and supplementing vitamins. White ...

With immune cell gene therapy, genes in certain white blood cells are changed, or “reprogrammed,” so they can find and fight cancer cells in your body. Each person’s treatment is made using ...

The study's findings suggest that high baseline white blood cell count, particularly high neutrophil count, was associated with a higher incidence of long-term acute exacerbation of chronic ...

As a Black man, should I be worried my white blood cell count is always low? 01:04 BOSTON - Dr. Mallika Marshall is answering your latest health questions.

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 ...

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 ...

The white blood cell then engulfs the pathogen in a process called phagocytosis, in which it "eats" the foreign invader to neutralize it. This dramatic process might sound like something out of a ...

This cell encircles the pathogen with its membrane, forming a tight, constricting ring. With remarkable force, the white blood cell yanks the pathogen off the wound’s surface. The white blood cell ...