There are more women than men in thyroid cancer, which is related to the physiological function of thyroid. Thyroid cancer is a kind of endocrine organ cancer with high incidence. It is located in the front of the neck, under the Adam's apple and on both sides of the trachea. It is an important endocrine organ of the human body. Guangzhou Zhongshan family doctor undertakes the function of ingesting and storing iodine, and at the same time synthesizes and secretes thyroxine, which affects cell metabolism, fetal and infant development. Female hormones, including estrogen and progesterone, are likely to participate in the occurrence and development of thyroid cancer. The higher the estrogen level in the body, the more helpful it is to the occurrence of thyroid cancer. Women themselves have more estrogen than men. In addition, women aged 2-4 are in the prime of their lives, and their hormone levels are high throughout their lives. Therefore, women are the majority of thyroid cancer patients at this stage.