What is myelosuppression?

Myelosuppression refers to the reduction of bone marrow activity, which leads to a decrease in the production of blood cells. This condition can result from various causes, including certain chemotherapy agents, and can lead to significant clinical implications, such as anemia, thrombocytopenia (low platelet counts), and leukopenia (low white blood cell counts).

By understanding that myelosuppression specifically denotes a decrease in bone marrow function, it's clear why this option is the correct definition. The bone marrow is crucial for producing the components of blood, and any suppression of its activity can directly impact the overall hematologic health of a patient, making this understanding vital in the context of chemotherapy and its side effects.