Standard screening test: NONE

Thyroid examination can be used for early detection. Not shown to reduce mortality, unable to detect tiny tumours.

  • Thyroid cancer has the most rapidly increasing incidence among all major cancers, both in Canada and worldwide. In Canada, there was a 6.3% per year increase in rate in males since 2001 and a 4.4% per year increase in rate in females between 2005 and 2010.
  • The rise may be due to several reasons, including overdiagnoses. More frequent use of diagnostic testing, including ultrasound, computed tomography (CT) scanning and magnetic resonance imaging (MRI), may mean that more earlier stage, asymptomatic thyroid cancers are being diagnosed. Exposure to diagnostic ionizing radiation has likely increased over time, and this could promote the initiation of new tumours.

Additional facts & information:

5 Year Survival

  • Stage 0 – no data
  • Stages 1&2 – 99%
  • Stage 3 – 98%
  • Stage 4 – 55%

About 31% of cases are diagnosed at stage 3 or stage 4.