More recent hematology questions These answers are not meant to replace the personal care or advice of your physician. Please consult with your physician regarding your medical care. Your browser may allow you to search this web page for a keyword or phrase by using the find command. Your body contains several kinds of white blood cells, which protect the body from infection.
Most white cells are neutrophils, which attack and engulf bacteria.
Another kind is lymphocytes, which recognize foreign cells and infectious agents and participate in the body's immune reaction to them. Neutropenia is a blood disorder that can affect anyone. Some people are born with it. It can appear after a viral infection or exposure to a certain poison. In some cases it can be a side effect of a drug.