Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Factor, colony-stimulating
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Factor, colony-stimulating: A laboratory-made agent similar to a normally existing substance in the body that stimulates the production of blood cells.
The colony-stimulating factors (CSFs) include granulocyte colony-stimulating factors (G-CSF) and granulocyte-macrophage colony-stimulating factors (GM-CSF).
Treatment with colony-stimulating factors can help the blood-forming tissue recover from the effects of chemotherapy and radiation therapy.