Precautionary removal of the thyroid gland
If you test positive for one of the genes that is known to cause medullary cancer (see Thyroid cancer - causes), you may be advised to have your thyroid gland removed as a precaution.
If you decide to have surgery, you will need to take replacement hormones for the rest of your life. See the Thyroid Cancer - treatment for more information.
Diet
From the available evidence, eating a healthy balanced diet is the best way for you to prevent getting thyroid cancer and all other types of cancer.
A low-fat, high-fibre diet is recommended, with plenty of fresh fruit and vegetables (at least five portions a day) and wholegrains.
See the Live Well section about Healthy eating for more information and advice.
