<unk>  () is a decrease in the number of leukocytes (WBC). Found in the blood, they are the white blood cells, and are the body's primary defense against an infection. Thus the condition of<unk>  places individuals at increased risk of infection. Symptoms may include: * skin or mouth ulcers * sore throat * cough * difficulty in breathing * light-headedness * fever * chills * body aches. Neutropenia, a subtype of<unk> , refers to a decrease in the number of circulating neutrophil granulocytes, the most abundant white blood cells. The terms<unk>  and neutropenia may occasionally be used interchangeably, as the neutrophil count is the most important indicator of infection risk. Agranulocytosis is an acute form of neutropenia.
Leukopenia
Cytopenia
Basopenia
Pancytopenia
Eosinopenia
Osteopenia
Lymphocytosis
Agranulocytosis