There is no any clear reason why Thyroid cancer causes. Thyroid cancer occurs when cells in your thyroid undergo genetic changes (mutations). This allows the cells to grow and multiply rapidly. These cells even not die at regular interval as other normal cells do. The accumulating abnormal thyroid cells form a tumor. The abnormal cells can invade nearby tissue and can spread throughout the body.
Thyroid cancer is not contagious. Recent research shows that there some factors which increase the risk factor. These are as follows.
Radiation - People exposed to high levels of radiation are much more likely than others to develop papillary or follicular thyroid cancer.
Family History- A small number of people with a family history of goiter or certain precancerous polyps in the colon are at risk for developing papillary thyroid cancer.
Being Female -In the United States, women are two to three times more likely than men to develop thyroid cancer.
Age - Most patients with thyroid cancer are more than 40 years old. People with anaplastic thyroid cancer are usually more than 65 years old.
Race In the United States, white people are more likely than African Americans to be diagnosed with thyroid cancer.
Deficiency of Iodine Thyroid cancer seems to be less common in the United States than in countries where iodine is not part of the diet.
Do you know the causes of Cancer?