About-Hyperthyroidism also known as overreactive thyroid or thyrotoxicosis is a condition in which the thyroid gland (a butterfly-shaped gland in the neck) produces too much tetraiodothyronine (T4) and triiodothyronine (T3) hormone.
Causes-
Benign tumors of the thyroid or pituitary gland Excess iodine intake Graves' disease Intake of large amounts of tetraiodothyronine Plummer's disease Thyroiditis Toxic adenoma Toxic multinodular goiter Tumors of the ovaries or testes
Specialists to visit Endocrinologist Nuclear Medicine Doctor