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A sign is something that can be observed and recognized by a doctor or healthcare professional (for example, a rash). A symptom is something that only the person experiencing it can feel and know (for example, pain or tiredness). The signs and symptoms of thyroid cancer can also be caused by other health conditions. It is important to have any unusual symptoms checked by a doctor.
Signs and symptoms of thyroid cancer are:
It is important to know that many patients with newly diagnosed thyroid cancer may not have any of these signs or symptoms.
Medullary thyroid cancer is a rare thyroid cancer that is characterized by increased amounts of the hormone calcitonin in the bloodstream. This can cause additional signs and symptoms such as:
The Canadian Cancer Society’s Cancer Information Service (CIS) is Canada’s only national, bilingual, toll-free service that offers personalized comprehensive cancer information in over 100 languages.