Leukopenia

At Montefiore Einstein Hematology (Blood Disorders), you can access exceptional care for leukopenia. As a global leader in hematology, we are an academic-based, national and international referral site for the most complex and high-risk cases. For over a century, we have been at the forefront of innovation, research and clinical care for all types of blood disorders.

Our team of world-renowned hematologists is passionate about uncovering the latest diagnostic approaches and treatments that can improve outcomes.

At Montefiore Einstein Hematology (Blood Disorders), you can expect compassionate, personalized, research-driven treatment plans that meet the highest standards for quality and safety. By combining innovative therapies with proactive patient outreach, we strive to elevate the standard of care and significantly enhance outcomes for those living with leukopenia.

When you need leukopenia care, turn to our dedicated providers who will develop a highly personalized treatment plan.

Montefiore Einstein offers the following content from the health information library of the National Institutes of Health’s National Library of Medicine and the National Heart, Lung and Blood Institute.

What Is Leukopenia?

Leukopenia is a condition characterized by a lower-than-normal number of white blood cells (WBCs), which are crucial for the immune system’s ability to fight infections. A decrease in WBCs makes individuals more vulnerable to infections, and leukopenia can be a symptom of an underlying medical condition or a side effect of treatments like chemotherapy. Monitoring and managing leukopenia is critical to ensuring overall health and preventing severe infections.

Types of Leukopenia

Leukopenia can be classified into different types based on the specific type of white blood cells affected.

  • Neutropenia refers to a low count of neutrophils, the most common type of WBC, responsible for fighting bacterial and fungal infections.
  • Lymphopenia describes a deficiency in lymphocytes, which help the body fight viral infections and regulate immune responses.
  • Monocytopenia involves a low level of monocytes, which play a role in removing dead cells and fighting certain infections.
  • Eosinopenia occurs when eosinophils, which combat allergies and parasitic infections, are abnormally low.

Each type of leukopenia may indicate a different underlying cause and requires a tailored diagnostic and treatment approach.

Causes of Leukopenia

Leukopenia can be caused by a variety of factors, including infections, nutritional deficiency, autoimmune diseases and treatments like chemotherapy or radiation therapy. Certain viral infections, such as HIV or hepatitis, can suppress white blood cell production. Autoimmune disorders, such as lupus or rheumatoid arthritis, may lead to leukopenia when the body mistakenly attacks its own WBCs. Bone marrow disorders, including leukemia and myelodysplastic syndromes, can impair WBC production. Nutritional deficiencies, particularly vitamin B12 or folate, may also contribute to low WBC counts. Identifying the underlying cause of leukopenia is essential for determining the most effective treatment strategy.

Signs & Symptoms of Leukopenia

Leukopenia itself does not always cause symptoms, but individuals with a low WBC count may experience frequent or severe infections, fever or fatigue. Other associated symptoms can include mouth sores, skin infections and delayed wound healing. In some cases, leukopenia is detected through routine blood tests before symptoms develop. Leukopenia is frequently asymptomatic and does not require therapy. However, severe leukopenia can lead to life-threatening infections if left untreated.

Diagnosing Leukopenia

Diagnosis of leukopenia begins with a complete blood count (CBC) test to measure WBC levels. Additional tests may be performed to determine the cause, including review of the peripheral blood smear, laboratory testing and imaging. If these are not diagnostic, additional testing includes bone marrow biopsy to evaluate bone marrow function and WBC production, blood cultures to detect infections and autoimmune screening tests. Genetic testing may be recommended in cases of inherited leukopenia. Identifying the root cause allows for targeted treatment to restore normal WBC levels and strengthen immune function.

Treating Leukopenia

Treatment for leukopenia depends on its cause and severity. If leukopenia results from an infection, treating the underlying infection may restore WBC levels. In cases related to chemotherapy or radiation therapy, doctors may prescribe colony-stimulating factors (CSFs) to stimulate white blood cell production. Nutritional deficiencies can be corrected with dietary adjustments or supplements. For autoimmune-related leukopenia, medications that suppress the immune system’s attack on WBCs may be required. Preventative measures, such as avoiding large crowds and practicing good hygiene, can help reduce the risk of infection for individuals with chronic leukopenia. With proper medical care, most cases of leukopenia can be effectively managed. Frequently, no treatment may be needed.