Thyroid nodules are a very common type of thyroid disease in clinical practice. This is because thyroid nodules are a series of swellings caused by glandular hyperplasia or tumors within the thyroid gland and have nothing to do with itchy skin on the surface of the neck. The itchy skin on the surface of the neck may be caused by allergies or eczema, and is not necessarily related to the thyroid nodule itself. Thyroid nodules are unnoticeable to patients in the early stages or when they have mild symptoms, and are discovered during unintentional exams or neck ultrasounds. Larger thyroid nodules may appear as a painless mass in the neck, which may move up and down with swallowing. In severe cases, there may be slight difficulty breathing or a foreign body sensation when swallowing with no obvious symptoms of itching when it compresses the trachea or esophagus.