What causes thyroid cancer

What causes thyroid cancer? In addition to the harm of thyroid cancer, it can also lead to other diseases, causing serious damage to the patient's body. If you understand the cause of thyroid cancer, it will be of great help in treatment. So what causes thyroid cancer?

What are the causes of thyroid cancer?

(I) 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 can also easily induce thyroid cancer. Iceland and Japan are countries with the highest iodine intake, and their thyroid cancer detection rates are higher than those in other countries. This may be related to the factors that stimulate thyroid hyperplasia by TSH. Experiments have shown that long-term TSH stimulation can promote thyroid hyperplasia, form nodules and cancer.

2. Genetic factors

About 5% of medullary thyroid cancer has a clear family history and is often associated with pheochromocytoma and other diseases. It is speculated that the occurrence of this type of cancer may be related to chromosomal genetic factors.

3. Radiation damage

Irradiating the thyroid gland of experimental mice with X-rays can induce 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 on the one hand, radiation causes abnormal division of thyroid cells, leading to cancer; on the other hand, it damages the thyroid gland and makes it unable to produce endocrine hormones. The resulting large secretion of thyroid stimulating hormone (TSH) can also promote thyroid cell cancer.

(IV) Other thyroid diseases

There have been clinical reports of thyroid adenocarcinoma, chronic thyroiditis, nodular goiter, or certain toxic goiters becoming cancerous, but the relationship between these thyroid lesions and thyroid cancer is still difficult to confirm.

The editor kindly reminds you to make early detection and early treatment. The number of people with thyroid cancer continues to increase. Once you have thyroid cancer, you should face it positively. Thyroid cancer will have some complications during treatment. Many patients with thyroid cancer want to know some early manifestations.