Complications

Complications associated with some thyroid nodules include:

• Problems swallowing or breathing. Large nodules or a multinodular goiter can interfere with swallowing or breathing.

• Hyperthyroidism. Problems can occur when a nodule or goiter produces thyroid hormone, leading to an excess amount of the hormone in the body. Hyperthyroidism can result in weight loss, muscle weakness, heat intolerance, and anxiousness or irritability.

  Potential complications of hyperthyroidism include an irregular heartbeat, weak bones and thyrotoxic crisis, a rare but potentially life-threatening intensification of signs and symptoms that requires immediate medical care.

• Problems related to thyroid nodule surgery. If your doctor recommends surgery to remove a nodule, you may need to take thyroid hormone replacement therapy for the rest of your life.