Thyroid nodules are excessive overgrowths of cells in the thyroid gland that are usually benign but can be malignant in some cases (in the ratio of one to twenty). Some people have a single nodule, whereas others have several. Thyroid nodules can be solid or full of blood or fluid. Unknown factors frequently cause thyroid nodules. They can run in families, implying that they have a genetic foundation. Iodine shortage can also cause nodules, which is uncommon in the United States.
Cancer is the source of tissue overgrowth in just a small percentage of persons with thyroid nodules, so it is critical to contact a doctor if you suspect you have a nodule.
How many thyroid nodules turned out to be malignant?
Just around 5% of thyroid nodules are malignant. Thyroid nodules that are “purely cystic,” filled with fluid rather than thyroid tissue, are almost usually benign (non-cancerous growths).
What harm can a thyroid disease do to you?
Thyroid nodules, in some situations, produce extra thyroxine, a hormone secreted by your thyroid gland. The excess thyroxine can produce symptoms of thyroid hormone overproduction (hyperthyroidism), such as:
Inexplicable weight loss
excessive sweating
Tremors
nervousness
A rapid or uneven heartbeat
Patients with thyroid nodules may occasionally have neck, jaw, or ear pain. Suppose a nodule is big enough to press the windpipe or esophagus. In that case, it may cause trouble breathing or swallowing or cause a “tickle in the throat.” The nodule can also cause hoarseness if it infiltrates the nerve that controls the vocal cords, which is usually associated with thyroid cancer.