6 doctors weighed in:

How can radiation therapy kill cancerous cells while leaving the good cells?

6 doctors weighed in
Dr. Bahman Daneshfar
Radiation Oncology
3 doctors agree

In brief: It can.

By fractionation and avoiding as much of the good cells as possible.
If you give a little radiation each day for weeks it allows good cells to repair dna damage over that 24 hour period between treatments. Cancer cells often lose this ability. With newer techniques we avoid as much of an organ as possible so sometimes we are so accurate we can give just one therapy because good cells were missed.

In brief: It can.

By fractionation and avoiding as much of the good cells as possible.
If you give a little radiation each day for weeks it allows good cells to repair dna damage over that 24 hour period between treatments. Cancer cells often lose this ability. With newer techniques we avoid as much of an organ as possible so sometimes we are so accurate we can give just one therapy because good cells were missed.
Dr. Bahman Daneshfar
Dr. Bahman Daneshfar
Thank
Dr. Gene Wong
Radiation Oncology
1 doctor agrees

In brief: Radiation biology

Luckily through mother nature, most cancer cells are more sensitive to radiation than normal cells.
Normal cell tend to heal and repair better and new stem cells can grow and migrate to help to repopulate the depleted normal cells. Also the faster the cells grow, the more they are susceptable to radiation and cancer cells are usually fast growing. New tech also allows us to target more accurately.

In brief: Radiation biology

Luckily through mother nature, most cancer cells are more sensitive to radiation than normal cells.
Normal cell tend to heal and repair better and new stem cells can grow and migrate to help to repopulate the depleted normal cells. Also the faster the cells grow, the more they are susceptable to radiation and cancer cells are usually fast growing. New tech also allows us to target more accurately.
Dr. Gene Wong
Dr. Gene Wong
Thank
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