|
|
|
Hyperthyroidism Health Article
|
| Table of Contents |
Definition
Hyperthyroidism is a condition in which the thyroid gland is overactive, and makes too much thyroid hormone (called thyroxine [T4 ] and triiodothyronine [T3 ]). Hormones are substances that affect and control many important functions in the body.
Alternative Names
Thyrotoxicosis; Overactive thyroid
Causes, incidence, and risk factors
The thyroid gland is located in the neck. It produces several hormones that control the way every cell in the body uses energy (metabolism). The thyroid is part of the endocrine system. Hyperthyroidism occurs when the thyroid releases too much of its hormones over a short (acute) or long (chronic) period of time. Many diseases and conditions can cause this problem, including:
Graves disease accounts for 85% of all cases of hyperthyroidism. Related topics:
Symptoms
Other symptoms that can occur with this disease:
|
advertisement |
|
Use of this Web site constitutes acceptance of our Terms and Conditions of Use and Privacy Policy.