The abnormal proliferation of thyroid cells can result in thyroid cancer. However, the actual cause is still unknown. In general, patients are middle-aged or older; and women have a higher risk than men. According to the Hong Kong Cancer Registry of the Hospital Authority, there are 795 new cases in 2014.
Fortunately, the survival rate of thyroid cancer is very high. If it is diagnosed early and treated properly, most cases can be cured satisfactorily.