Hyperthyroidism is short for hyperthyroidism and hypothyroidism is short for hypothyroidism. Hyperthyroidism and hypothyroidism can be checked by blood tests for thyroid-related hormones and thyroid ultrasound. Thyroid-related hormones include triiodothyronine, free triiodothyronine, thyroxine, free thyroxine and thyrotropin. In addition, thyroid ultrasound can be used to check whether the thyroid gland is enlarged or not, and then combined with the patient’s clinical symptoms to make the relevant diagnosis. Once hyperthyroidism or hypothyroidism occurs, patients should go to regular hospitals for medical treatment to avoid the progression of the disease, have a regular routine and maintain emotional stability.