In some cases, lymphocytopenia can be further classified according to which kind of lymphocytes are reduced.

The most common cause of temporary lymphocytopenia is a recent infection, such as the common cold.

There is some concern that ipriflavone can cause a decreased white cell count (lymphocytopenia) in people taking it for greater than six months.

Large doses of radiation, such as those involved with nuclear accidents or medical whole body radiation, may cause lymphocytopenia.

A general increase in the number of lymphocytes is known as lymphocytosis whereas a decrease is lymphocytopenia.

The mandatory criteria for diagnosis of idiopathic CD4+ lymphocytopenia include:

In NK lymphocytopenia, there are too few natural killer cells, but normal numbers of other lymphocytes.

Moreover, they cause lymphocytopenia, eosinopenia, neutrophilia and polycythemia.

Ananda informs her that he is suffering from 'Lymphocytopenia' a medical condition for which he would survive only for two more years.

Some malignancies that have spread to involve the bone marrow, such as leukemia or advanced Hodgkin's disease, also cause lymphocytopenia.

The most common abnormalities detected during blood testing were anemia, lymphocytopenia, leukopenia, thrombocytopenia and neutropenia.

There is profound monocytopenia, B lymphocytopenia and NK lymphocytopenia.

Causes of T cell deficiency include lymphocytopenia of T cells and/or defects on function of individual T cells.

In contrast to the CD4 cell depletion caused by HIV, patients with idiopathic CD4 lymphocytopenia generally have a good prognosis.

Pneumocystis carinii pneumonia can occur, therefore, in primary HIV-1 infection, and profound CD4 lymphocytopenia can revert to normal without antiretroviral therapy.

Low white cell count (lymphocytopenia): Since ipriflavone can cause lymphocytopenia, there is a concern that it might make pre-existing lymphocytopenia worse.

T cell deficiency is a deficiency of T cells, either caused by lymphocytopenia of T cells or by decreased function of individual T cells.

Idiopathic CD4+ lymphocytopenia (ICL) is a very rare medical syndrome in which the body has too few CD4 T lymphocytes, which are a kind of white blood cell.

Patients with idiopathic CD4+ lymphocytopenia may have either abnormally low but stable CD4+ cell counts, or abnormally low and progressively falling CD4+ cell counts; the latter condition is terminal.

It can be mediated by insufficient number or function of B cells, the plasma cells they differentiate into (with these two potentially being caused by B cell lymphocytopenia), or the antibody secreted by the plasma cells.

Lymphocyte T-Cell Immunomodulator is intended as an aid in the treatment of cats infected with feline leukemia virus (FeLV) and/or feline immunodeficiency virus (FIV), and the associated symptoms of lymphocytopenia, opportunistic infection, anemia, granulocytopenia, or thrombocytopenia.

Heavy use of kava with comorbid alcohol consumption or an existing liver condition appears to lead to malnutrition, weight loss, liver damage (causing elevated serum γ -glutamyltransferase and high-density lipoprotein cholesterol levels), renal dysfunction, rashes, pulmonary hypertension, macrocytosis of red cells, lymphocytopenia, and decreasing platelet volumes.

Lymphocytopenia, but not idiopathic CD4+ lymphocytopenia, is associated with corticosteroid use, infections with HIV and other viral, bacterial, and fungal agents, malnutrition, systemic lupus erythematosus, severe stress, intense or prolonged physical exercise (due to cortisol release), rheumatoid arthritis, sarcoidosis, and iatrogenic (caused by other medical treatments) conditions.