chronic thyroiditis of Joe's thyroiditis is a non-infectious autoimmune disease, also known as Qiao Ben's disease or Joe's thyroiditis. It has the following characteristics: 1. Patients will have goiter and pain after eating a lot of fishy food. Some people will also have symptoms of hyperthyroidism. 2. Goiter, most of them have tenderness, no vascular murmur and nodules. 3. Adolescent goiter. 4. There is localized mucinous edema in front of the calf and tibia. 5. The patient's hyperthyroidism symptoms can "self-heal" without taking medicine, which can occur repeatedly. 6. The patient has both hyperthyroidism and hypothyroidism. Chronic thyroiditis develops slowly, and most people have no special feeling, so that hypothyroidism has appeared when they see a doctor, and a few people may have mild hyperthyroidism in the early stage of the disease. According to clinical observation, Qiao Ben's disease can be divided into three stages: first, early stage, hyperthyroidism stage. When the degree is mild, the patient only has mild hyperthyroidism symptoms, such as good appetite, easy fatigue, mild insomnia, boredom and impatience. When the degree is serious, obvious hyperthyroidism symptoms will appear, and good results can be obtained by taking a little medicine for hyperthyroidism, but it is also prone to drug-induced hypothyroidism. Some patients also "self-heal" because of the reduction of inflammation. Good curative effect and high recurrence rate are the characteristics of this stage. Second, in the middle stage, hyperthyroidism and hypothyroidism coexist. After repeated and repeated destruction of thyroid tissue, the cells with normal function gradually decreased, and to a certain extent, hypothyroidism symptoms appeared. Another feature of this period is that patients have hyperthyroidism symptoms, but the laboratory indicators will be slightly higher or normal. Third, the late stage, hypothyroidism. The secretion of thyroxine is even less, which is a clinical manifestation of hypothyroidism. Therefore, after the patients were supplemented with thyroxine in this period, although the test indexes were normal, many people always felt uncomfortable, and sometimes they felt hyperthyroidism symptoms. It is worth noting that some patients have hyperthyroidism indicators and symptoms due to the aggravation of infection, and some writings call it "hypothyroidism to hyperthyroidism". Clinically, every appearance of hyperthyroidism in patients with chronic thyroiditis indicates the further aggravation of hypothyroidism. To sum up, it can be seen that in the development of chronic thyroiditis, there are not no special feelings in the early stage, but these feelings are not taken seriously by patients and they do not go to see a doctor. Those who went to see a doctor were also ignored by doctors because the test results did not support the patient's statement. In the middle and late stage, low indexes are easy to diagnose, while normal and high indexes are easy to be misdiagnosed. The indicators are normal, and it is impossible to judge. The doctor asked me to go home for observation and test again after a while. Those with high indicators are treated as hyperthyroidism. This kind of misdiagnosis is the result of doctors only relying on laboratory indicators to see a doctor. Although some patients with chronic thyroiditis have indicators and symptoms of hyperthyroidism in the early or middle early stage, they should never be treated with surgery or isotope therapy, which will make the patients become heavier hypothyroidism very quickly. Nodules are one of the characteristics of chronic thyroiditis and the result of fibrosis after the disintegration of thyroid follicles. Because the nodule is easily misdiagnosed as nodular hyperthyroidism and operated, the result is still hypothyroidism in advance. Because chronic thyroiditis will have hyperthyroidism symptoms in the early stage and hypothyroidism symptoms in the late stage, at the time of diagnosis, some people were diagnosed as "Qiao Ben's disease with hyperthyroidism" and "Qiao Ben's disease with hypothyroidism". In the development of chronic thyroiditis, hyperthyroidism is one of its clinical manifestations, and hypothyroidism is its inevitable result, so it is wrong to use the word "companion". If doctors can firmly grasp the characteristics of chronic thyroiditis and laboratory examination, they can reduce misdiagnosis and make patients get correct treatment as soon as possible.