White blood cells help fight infection in the body. Medical practices can differ in how they define a low white blood cell count. There are five types of white blood cells. Neutrophils account for ...

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 blood ...

Medically reviewed by Douglas A. Nelson, MDMedically reviewed by Douglas A. Nelson, MD Certain cancers can cause high white blood cell (WBCs) counts, or in some cases, low levels. WBCs, also called ...

BOSTON - Dr. Mallika Marshall is answering your latest health questions. If you have a question, email her or message her on Facebook or X (formerly known as Twitter). White blood cells or WBCs make ...

A simple blood test might determine which patients are at risk for long COVID, a new study says. Higher levels of leukocytes -- a form of white blood cell -- are associated with more severe symptoms ...