Thyroid cancer is a disease in which malignant cells form in the tissues of the thyroid gland. Thyroid nodules are common but usually are not cancer. There are different types of thyroid cancer. Age, gender, and being exposed to radiation can affect the risk of thyroid cancer. Best Treatment For Thyroid Cancer There are some risk factors which increases the chance of having cancer: 1. Gender: Thyroid Cancer occurs about 3 times more often in women than men. Women are diagnosed with 3 of every 4 thyroid cancers. 2. Age: Thyroid cancer can occur at any age, but about two-thirds of all cases are found in people between the ages of 40 and 55. Risk of thyroid cancer peaks in the 40s and 50s for women and for men it can occur in their 60s and 70s. 3. Hereditary Conditions: Several inherited conditions have been linked to different types of thyroid cancer, as has a family history like 2 out of 10 medullary thyroid carcinomas (MTCs) result from inheriting an abnormal gene.