Is external beam radiation treatment for breast cancer dangerous?

External beam radiation is not dangerous. It is delivered through a catheter, similar to a straw, that is placed inside of a cavity where the tumor was removed.

Radiation is contained in small seeds that are delivered through the straw, and then removed so the patient is not radioactive.

Trinity Health is a Catholic health care organization that acts in accordance with the Catholic tradition and does not condone or support all practices covered in this site. In case of emergency call 911. This site is educational and not a substitute for professional medical advice, always seek the advice of a qualified health care provider.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.