Possible Causes for Leukopenia in USA

  • Influenza
    Leukopenia Leukocytes Decreased

    Influenza is acommon infectious disease caused by the Influenza virus. Onset is sudden with fever, rhinorrhea, sore throat and headache. Severe myalgias coupled with respiratory tract symptoms are typical of influenza. Patients may also have red, watery eyes and cough. There can also be tachycardia and dyspnea…[1]

  • Infectious Mononucleosis
    Leukopenia Leukocytes Decreased

    Infectious mononucleosis is a common viral infection known to cause pharyngitis and fever. It is primarily an infection of teenagers and young adults caused by the Epstein Barr virus. The majority of patients with infectious mononucleosis have mild symptoms. However a few will complain of the following features: Once…[2]

  • Agranulocytosis
    Leukopenia Leukocytes Decreased

    Agranulocytosis, also known as agranulosis or granulopenia, is an acute condition involving a severe and dangerous leukopenia (lowered white blood cell count), most commonly … However, "-osis" is commonly used in blood disorders to imply cell proliferation (such as in "leukocytosis"), while "-penia" to imply reduced cell numbers (as in "leukopenia[3]

  • Dengue Fever
    Leukopenia Leukocytes Decreased

    Thrombocytopenia, lymphopenia and leukopenia are equally common with dengue fever. … Leukopenia and mild or moderate increases in level of alanine aminotransferase values can also be found.[4]

  • Aplastic Anemia
    Leukopenia Leukocytes Decreased

    In aplastic anemia, the patient has pancytopenia (i.e., leukopenia and thrombocytopenia) resulting in decrease of all formed elements. … This causes a deficiency of all three blood cell types (pancytopenia): red blood cells (anemia), white blood cells (leukopenia), and platelets (thrombocytopenia).[5]

  • Hypersplenism
    Leukopenia Leukocytes Decreased

    Pancytopenia or selective leukopenia, erythropenia and thrombocytopenia will also produce symptoms and signs. … Erythropenia will lead to the typical anemic symptoms (fatigue, pallor), leukopenia renders the individual susceptible to various kinds of infections and decreased platelet … [6]

  • Malignant Histiocytosis
    Leukopenia Leukocytes Decreased

    Anemia, thrombocytopenia, and leukopenia are frequent.[7]

  • Epidemic Typhus
    Leukopenia Leukocytes Decreased

    Common findings may include but are not limited to leukopenia, leukocytosis, thrombocytopenia, mild increase in transaminases, hyponatremia, hypoalbuminemia, and azotemia.[8]

  • Follicular Lymphoma
    Leukopenia Leukocytes Decreased

    develops any systemic symptoms.Another set of symptoms which may occur in the later stages of the condition are those depicting dysfunction of the bone marrow such as anemia, leukopenia[9]

  • Yellow Fever
    Leukopenia Leukocytes Decreased

    These include: Complete blood count: The findings in a complete blood count for patients with yellow fever include leukopenia, thrombocytopenia, increased hemoglobin and hematocrit … [10]

Further symptoms


  1. Influenza, Symptoma
  2. Infectious Mononucleosis, Symptoma
  3. Wikipedia: Agranulocytosis, CC-BY-SA-3.0
  4. Dengue Fever, Symptoma
  5. Wikipedia: Aplastic anemia, CC-BY-SA-3.0
  6. Hypersplenism, Symptoma
  7. Malignant Histiocytosis, Symptoma
  8. Epidemic Typhus, Symptoma
  9. Follicular Lymphoma, Symptoma
  10. Yellow Fever, Symptoma