There are many kinds of thyroid disorders, not all of which are serious, but some are indeed more serious. Thyroid disorders mainly include the following: i. Hyperthyroidism, mainly manifested as hyperthermia, excessive sweating, palpitations, wasting and other hypermetabolic syndromes, long treatment course, high recurrence rate, possible combination of hyperthyroid heart disease, thyroid crisis, etc., are very serious cases. Second, hypothyroidism, with thyroid hormone deficiency as the main cause, manifesting as hypometabolic symptoms, can involve the heart, forming pericardial effusion, requiring thyroid hormone replacement therapy, and is a very serious condition when severe hypothyroidism occurs with mucinous edema and coma. Third, thyroid nodules, when the enlargement of thyroid nodules is obvious or has a malignant tendency, it needs to be treated by surgery, which is also a more serious situation.