The full name of hyperthyroidism is “hyperthyroidism”. Hyperthyroidism is the result of a problem with the thyroid gland itself (or, in a few cases, due to some causes outside the thyroid gland, such as improper use of diet and medication), resulting in excessive levels of thyroid hormones in the blood. Hyperthyroidism is a multi-morbidity and common disease. The incidence of hyperthyroidism is on the rise due to various factors such as changes in human diet, increased work pressure and faster pace of life (as well as the increase in health care checkups). Hyperthyroidism can occur at any age, from newborn to elderly. Hyperthyroidism is more common in women, with 4 to 6 times more women than men. If hyperthyroidism is not diagnosed and treated in time, it will significantly affect the life and work of patients. Severe patients may develop hyperthyroid heart disease, diabetes mellitus, liver disease, myopathy (such as limb paralysis or paralysis), or severe hematopoietic dysfunction, etc. Long-term or severe hyperthyroidism can lead to heart failure, liver failure, thyroid crisis, etc., which can be life-threatening. Hyperthyroidism should be detected, diagnosed and treated as early as possible. Hyperthyroidism is not a single disease. The causes of the onset of different types of hyperthyroidism vary, and the specific causes of the disease differ from patient to patient. At present, it is believed that the factors that trigger hyperthyroidism can be broadly classified into the following aspects: 1. Genetic factors. Clinically, we can see that there are multiple hyperthyroidism patients in a family. If a mother has hyperthyroidism, her children will suffer from hyperthyroidism after puberty or in adulthood, and sometimes even several sisters will have hyperthyroidism. However, most hyperthyroidism is not hereditary. If parents have hyperthyroidism, their children may not necessarily have hyperthyroidism as well. 2. Autoimmune disorder. It is now believed that most hyperthyroidism is due to disorders in the patient’s own immune system. Originally, everyone’s immune system is designed to defend against the invasion of disease-causing microorganisms externally and to monitor the metabolism of their own tissues and cells internally to ensure the internal stability of the body. However, the immune system sometimes gets out of control, and the immune system becomes “indistinguishable from the enemy”, treating normal tissue cells as foreigners and launching self-attacks, resulting in “autoimmune dysfunction”. Hyperthyroidism is one of the consequences of the dysfunction of the human autoimmune system. 3. Infection. In some patients, the thyroid gland is damaged by infections or viral infections, causing the thyroid gland to release too much thyroid hormone, resulting in transient hyperthyroidism. However, in some patients, the infection and inflammation of the thyroid gland may induce dysfunction of the autoimmune system and produce anti-thyroid antibodies in their own bodies, resulting in chronic hyperthyroidism or other chronic thyroid diseases. 4, mental factors. Many patients with hyperthyroidism have been stimulated by mental factors before the onset of the disease. Mental tension can lead to the onset of hyperthyroidism or aggravation of the disease. Of course, not everyone should get hyperthyroidism under mental stress, but if there is a defect in the thyroid gland (such as a genetic background of thyroid disease), hyperthyroidism may occur once there is excessive mental stress. In addition to the above factors, pregnancy, consuming too much iodine-containing food, taking diet products containing thyroid medication or having pituitary disorders are all risk factors for hyperthyroidism.