Thyroid Nodule: Symptoms & Signs

Medically Reviewed on 11/10/2020

A thyroid nodule is a lump or mass in the thyroid gland, a butterfly-shaped gland in front of the neck. A goiter is a term that describes an enlargement of the thyroid gland.

Signs and symptoms of thyroid nodules depend on their size and location. Symptoms and signs can include a hard or soft lump in the neck that can be solid or filled with fluid. Many of these nodules are painless and do not cause other symptoms. A large nodule can cause

Only a small percentage of thyroid nodules are cancerous.

Causes of thyroid nodules

Various conditions, including cysts, inflammation of the thyroid, and benign or malignant tumors cause thyroid nodules.

Other thyroid nodule symptoms and signs


Where is the thyroid gland located? See Answer

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Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.