What is the cause of thyroid cancer

What are the causes of thyroid cancer? Thyroid cancer is a malignant lesion of thyroid disease. Its harmfulness can be imagined. Therefore, for such a disease in life, we must raise awareness of prevention and be prepared for prevention. So what are the causes of thyroid cancer? Let's learn about it together.

1. Genetic factors: About 5% to 10% of medullary thyroid cancers have a clear family history and are often combined with pheochromocytoma and other diseases. It is speculated that the occurrence of this type of cancer may be related to chromosomal genetic factors.

2. Iodine and TSH Excessive or insufficient iodine intake can change the structure and function of the thyroid gland. For example, the incidence of thyroid cancer in the endemic goiter-endemic area of ​​Switzerland is 2ermil, 20 times higher than that in non-endemic areas such as Berlin. On the contrary, a high-iodine diet is also prone to induce thyroid cancer. Iceland and Japan are countries with the highest iodine intake, and their thyroid cancer detection rates are higher than other countries. This may be related to the factors that stimulate TSH to proliferate the thyroid gland. Experiments have shown that long-term TSH stimulation can promote thyroid hyperplasia, form nodules and cancer.

3. Other thyroid diseases Clinically, there are reports of thyroid adenocarcinoma, chronic thyroiditis, nodular goiter or some toxic goiters becoming cancerous, but the relationship between these thyroid diseases and thyroid cancer is still difficult to confirm. Take thyroid adenoma as an example. The vast majority of thyroid adenomas are follicular, and only 2% are papillary tumors. If thyroid cancer is transformed from adenoma, the vast majority should be follicular, but in fact more than half of thyroid cancers are papillary cancers. It is speculated that the incidence of thyroid tumor cancer is also very small.

4. Radiation damage Using X-rays to irradiate the thyroid gland of experimental mice can cause thyroid cancer in animals. Experiments have shown that 131I can change the metabolism of thyroid cells, deform the nucleus, and greatly reduce the synthesis of thyroid hormone. It can be seen that radiation can cause abnormal division of thyroid cells and lead to cancer on the one hand; on the other hand, it can damage the thyroid gland and prevent it from producing endocrine hormones. The resulting large amount of thyroid-stimulating hormone secretion can also promote thyroid cell cancer.

This is the end of the introduction to the causes of thyroid cancer. I wonder if you have understood it. Only by knowing the causes can we do a better job of prevention. In addition, you can also do more physical exercise in your daily life to improve your body's immunity.