Leukopenia is a condition characterized by a lower than normal number of white blood cells (leukocytes) in the bloodstream. This decrease can impair the body's ability to fight off infections.
Related terms
Leukocytes: White blood cells that are part of the immune system, responsible for fighting infections and other diseases.
Neutropenia: A type of leukopenia focused specifically on a reduction in neutrophils, which are the most common type of white blood cell.
Bone marrow: A spongy tissue inside bones where blood cells, including leukocytes, are produced