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Who Is at Risk for Lymphocytopenia?

People at highest risk for lymphocytopenia have one of the diseases, conditions, or factors that can cause a low lymphocyte count. This includes people who have:

  • AIDS or other infectious diseases
  • Autoimmune disorders
  • Blood cancers or other blood diseases
  • Certain inherited diseases or conditions

People who have had steroid therapy or radiation or chemotherapy (treatments for cancer) also are at increased risk. For more information, go to "What Causes Lymphocytopenia?"

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Lymphocytopenia Clinical Trials

Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans. To find clinical trials that are currently underway for Lymphocytopenia, visit

December 30, 2013 Last Updated Icon

The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.