The presence of hyperthyroidism can be determined from the presence of hyperthyroidism symptoms, as well as the presence of goiter and abnormal thyroid function.
Patients with hyperthyroidism may have symptoms of hypermetabolism, such as palpitations, excessive sweating, weight loss, increased appetite, diarrhea or bowel movements, agitation, etc., and may be accompanied by an enlarged thyroid gland.
Thyroid function tests may show an increase in serum thyroid hormone levels and a decrease in thyrotropin levels.
Hyperthyroidism is diagnosed when there are signs and symptoms of hypermetabolism, an enlarged thyroid gland, and the above mentioned abnormalities in thyroid function. However, some patients with hyperthyroidism do not have obvious symptoms, such as apathetic hyperthyroidism, and some patients with hyperthyroidism only have increased serum triiodothyronine (T3), which is known as T3 hyperthyroidism.
Patients suspected of having hyperthyroidism should go to the hospital and ask their doctor to make a judgment.