Hashimoto’s thyroiditis does not cause pain in most cases. If there is increasing pain, it is necessary to suspect the occurrence of subacute thyroiditis, thyroid hemorrhage, and so on, and it is recommended to consult a doctor promptly. In most cases, Hashimoto’s thyroiditis does not cause pain, but only a few patients may experience pain. In addition, Hashimoto’s thyroiditis can be accompanied by goiter, and if further nodules or cysts appear and the local activity is too large or impacted by external forces, it can cause thyroid bleeding, resulting in increasing pain. Thyroid pain can also be seen in subacute thyroiditis, which is a condition in which there is a localized inflammatory reaction in the thyroid tissue, leading to increasing pain. Patients with Hashimoto’s thyroiditis are advised to visit a hospital and ask their doctor for a diagnosis if they are experiencing increasing pain.