Radiotherapy uses high energy waves similar to x-rays to kill cancer cells. 

Radioactive iodine treatment

Radioactive iodine treatment is frequently used to treat thyroid cancer. The treatment is taken by mouth.

External beam radiotherapy

External radiotherapy is used to treat some thyroid cancers.

Last reviewed: 
25 May 2021
Next review due: 
27 May 2024
Coronavirus and cancer

We know it’s a worrying time for people with cancer, we have information to help.

Read our information about coronavirus and cancer