The thyroid is an endocrine gland that produces hormones. These control the rate at which the body burns calories or heartbeat.

The thyroid gland may suffer various diseases:

  • The thyroid is enlarged
  • Hyperthyroidism: When the gland produces more thyroid hormone than necessary
  • Hypothyroidism occurs when not enough hormone
  • Thyroid cancer
  • Thyroid nodules: lumps in the gland
  • Thyroiditis: swelling of the gland