Hashimoto’s thyroiditis is an autoimmune disease with no special preventive measures, but it can be prevented by paying attention to dietary habits, balancing iodine intake appropriately and avoiding foods that can cause goiter. Here is a detailed introduction from our experts. The prevention of Hashimoto’s thyroiditis requires a diet that focuses on high-fiber foods including green leafy vegetables, coarse grains, and many fruits. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. For patients with Hashimoto’s thyroiditis combined with hyperthyroidism, the intake of seafood such as kelp and seaweed should be temporarily restricted in the diet to reduce the iodine content in food. In contrast, patients with Hashimoto’s thyroiditis combined with hypothyroidism, such as those with chronic lymphocytic thyroiditis, should increase the amount of iodine in their diet and increase the concentration of iodine in their blood to prepare sufficient raw materials for the synthesis of thyroid hormones. Some data show that Hashimoto’s disease has complex clinical manifestations, many comorbidities and a low preoperative diagnosis rate, so it should be taken seriously to avoid misdiagnosis. Surgical treatment of Hashimoto’s disease is desirable, but its indications should be strictly mastered, the surgical protocol should be individualized, enough thyroid tissue should be preserved intraoperatively as much as possible, and thyroxine replacement therapy should be taken for a long time after surgery to achieve good therapeutic and preventive effects.