| The classical symptoms of hyperthyroidism are staring eyes and enlargement of the neck, but these need not be present. |
| Systemic symptoms may indicate the presence of hyperthyroidism, Addison's disease, or diabetes-related disorders. |
| Evaluation may also be appropriate for women who develop postpartum symptoms of hyperthyroidism or hypothyroidism. |
| When your thyroid gland produces too much of the hormone thyroxine, you develop hyperthyroidism. |
| Too much hormone production, for a variety of reasons, many of which are still unknown, and you get hyperthyroidism, also called thyrotoxicosis. |
| Most persons with thyroid nodules are euthyroid, with less than 1 percent of nodules causing hyperthyroidism or thyrotoxicosis. |
