Hyperthyroidism combined with Hashimoto refers to hyperthyroidism combined with Hashimoto’s thyroiditis, which, if not actively treated, may lead to conditions such as a rapid heartbeat, which is usually more serious; if actively treated, it is usually not serious. Treatments for hyperthyroidism include antithyroid medications, radioactive iodine 131, surgery, etc. Hyperthyroidism is usually not serious with active treatment. Hashimoto’s thyroiditis is an autoimmune disease that can be controlled with aggressive treatment and is usually not serious. However, without active treatment, it can cause excessive sweating, rapid heartbeat, and weight loss, which can affect normal life and is more serious. Therefore, if a patient has hyperthyroidism combined with Hashimoto’s thyroiditis, he needs to go to the hospital in time and choose medication or other ways of treatment under the doctor’s guidance, and his condition can be significantly reduced by actively carrying out the treatment.