Treatment of primary hyperthyroidism is divided into the following areas: (1) Drug therapy at the endocrinology department. (2) If drug therapy is not effective, iodine 131 radiotherapy may be done. (3) If both of these methods are ineffective, or if iodine 131 therapy is unacceptable, surgery may be considered. (4) Female patients who cannot receive drug therapy and iodine radiotherapy due to pregnancy need, surgery may also be considered. The latest concept of surgical treatment is to do a near-total thyroidectomy, striving to allow the patient to develop hypothyroidism after surgery, and then correct the hypothyroidism with drug control. Not only does this essentially eliminate recurrence, but hypothyroidism is very easy to correct. Correction of hypothyroidism with levothyroxine sodium tablets is currently considered safe for the fetus.