Radiation therapy is used to fight many types of cancer. Radiation targets rapidly dividing cells like cancer cells. Radiation prevents cell division and the replication of DNA (the genetic building blocks).
Review Date: 5/20/2016
Reviewed By: Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.