Define in session: in the process of meeting formally; conducting classes â in session in a sentence in the process of meeting formally; conducting classesâ¦ See the full definition
This condition can be caused by certain medications and by infections. In some cases, it is caused by a cancer or precancerous condition. Myelofibrosis, bone marrow scarring that can result from various hematologic cancers, typically leads to low blood counts. Pancytopenia can also be caused by aplastic anemia, a bone marrow failure disorder that affects blood cell production.
Autoimmune diseases that attack your white blood cells can also lead to a low WBC count. Several different prescribed drugs, including chemotherapy, are known to decrease WBC production or destroy WBCs. A low WBC count can be serious because it increases your risk of developing a potentially life-threatening infection.