Even if the self-manufactured cells were healthy, the patient is vulnerable to infection with a compromised immune system, and adding more white blood cells red

Even if the self-manufactured cells were healthy, the patient is vulnerable to infection with a compromised immune system, and adding more white blood cells reduces that vulnerability. Tangent: before undergoing some kinds of chemotherapy, patients are injected with drugs that stimulate white-blood-cell production. Most of your body's WBC production happens in the long bones of your body, and the sudden burst of "factory" activity makes your legs ache, the way growing pains hurt in children.