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Radiotherapy for thyroid cancer

Radioactive iodine treatment

Radioactive iodine is a type of radioisotope therapy. It uses radioactive iodine 131 (I-131). It is only suitable for some types of thyroid cancer, including papillary and follicular thyroid cancer.

Preparing for radioactive iodine treatment for thyroid cancer

You might need to have a low iodine diet for a few weeks before you have your treatment. Your thyroid stimulating hormone levels also need to be high before treatment.

Having radioactive iodine treatment for thyroid cancer

You have radioactive iodine treatment in the hospital. You take the iodine as a drink or capsule. And you usually stay in hospital for a few days after treatment.

After radioactive iodine treatment for thyroid cancer

Your healthcare team will tell you about any safety precautions you need to follow after your radioactive iodine treatment.

Last reviewed: 14 Aug 2023

Next review due: 14 Aug 2026

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