What is true about radiation therapy?

Radiation therapy is primarily effective because it works by damaging the DNA of cancer cells. This DNA damage interferes with the cells' ability to divide and grow, ultimately leading to cell death. Cancer cells, which typically divide more rapidly than normal cells, are more vulnerable to this damage. The selective targeting of DNA in cancer cells is what allows radiation therapy to be effective in treating tumors while attempting to minimize harm to surrounding healthy tissue.

Understanding the mechanism of action of radiation is critical in the context of treating malignant tumors, where precise delivery of radiation can maximize the impact on cancer cells while safeguarding healthy tissues. Monitoring and managing the side effects of radiation therapy is also crucial, as it can lead to complications, hence requiring careful follow-up and management strategies.