White Blood Cells

Causes of Polycythemia

Polycythemia has high red blood cell count. Learn causes, symptoms (headache, fatigue), diagnosis (CBC, EPO), and treatment options.

Neutropenia

Neutropenia is a condition with a low count of neutrophils, key infection-fighting white blood cells. This increases susceptibility to various infections.

Infectious Mononucleosis (Mono)

Infectious mononucleosis (Mono), the “kissing disease,” is a common viral illness (EBV). Symptoms include sore throat, fever, fatigue, and swollen glands. Usually resolves on its own.

Neutropenia

Neutropenia is a condition with a low count of neutrophils, key infection-fighting white blood cells. This increases susceptibility to various infections.

Natural Killer Cells

Natural Killer Cells

Natural Killer (NK) cells are vital immune cells that provide rapid defense against infections and cancer. They recognize and eliminate stressed or infected cells without prior sensitization, playing a key role in immunosurveillance.