Thyroid Gland:

The thyroid is a small organ in your neck that plays a big role in how your body functions. It impacts everything from your heart rate to your energy level. So, when there is a problem with the thyroid, it affects your entire body. Thyroid problems are very common. But most can be treated.

Nodules:

A nodule is a lump in the thyroid gland. You can have one or several nodules. A nodule can be a solid mass, a cyst filled with fluid, or both. Nodules are very common, but their cause is largely unknown. Most nodules are benign (not cancer). Sometimes, benign nodules are linked with hyperthyroidism or hypothyroidism. Malignant (cancer) may be linked with previous exposure to radiation. When symptoms caused by nodules occur, the can include:

• Neck lumps that can be seen or felt
• Pain or pressure in the neck
• Trouble swallowing
• Trouble breathing

Goiter:

A goiter is a thyroid gland that is enlarged. Goiters can range in size. Some goiters are large and visible, and others are hard to see or even feel. A goiter may be caused by hyperthyroidism or hypothyroidism, or neither. A common type of goiter is made up of nodules (multinodular goiter). When symptoms caused by a goiter occur, they can incude:

• A neck lump that can be seen or felt
• Trouble swallowing
• Trouble breathing