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A number of conditions can cause symptoms similar to thyroid cancer. For example, thyroid nodules or lumps are common and usually not cancerous.
Many people will first recognise a nodule in the middle of their neck that may be painful. People may also notice difficulty swallowing or a change in their voice. In rare cases people may notice diarrhoea and flushing as well as a nodule.
In cases where people have MEN syndrome, doctors may specifically look for early signs of thyroid cancer along with other causes of flushing and diarrhoea.
Last Review Date: September 7, 2019