Thyroid Nodules: Why Lumps In The Neck May Develop And When They Require Treatment
What are thyroid nodules?
Thyroid nodules are growths in the thyroid gland that are usually small and non-cancerous. They are usually caused by excess growth of normal thyroid tissue. Thyroid nodules don't cause symptoms in most cases, but if they grow big enough, they can press on the windpipe or esophagus, making it difficult to breathe or swallow. Sometimes, thyroid nodules make thyroxine, which is a hormone that your thyroid normally produces, leading to symptoms of overactive thyroid (hyperthyroidism).