Thyroid swelling is a broad term which includes thyroid nodules, benign thyroid tumors, and malignant thyroid tumors, all of which can be referred to as thyroid swellings. Depending on the nail function, it depends on whether it is accompanied by hyperthyroidism or hypothyroidism. Based on the ultrasound description, such as how the boundary is, whether the envelope is intact, whether it is connected to the surrounding tissues, whether it is compressing the trachea, and other definitions, thyroid-related antibodies should also be checked. These should be evaluated together to determine the nature of the thyroid swelling and to develop the appropriate treatment strategy. For example, a simple goiter or thyroid nodule may require appropriate treatment because it is accompanied by hyperthyroidism or hypothyroidism, or if the swelling is larger than a certain size, it may require surgical removal. Benign tumors, malignant tumors, etc. also require surgical evaluation to see if the goiter needs to be surgically removed. A goiter is a broad concept that requires professional communication with your doctor at the hospital.