Common causes of<unk>  or an elevated white blood cell count, include: infections (most common), inflammation, leukemia, lymphoma, myelodysplastic syndrome, and pneumonia.
Leukocytosis causes
Febrile neutropenia causes
Non-Hodgkin lymphoma causes
Sepsis causes
Thrombocytopenia causes
Lymphocytopenia causes
Myeloproliferative neoplasm causes
Myelofibrosis causes