When you notice thickening or a lump in your neck, even if you have no uncomfortable symptoms, you should think about whether an enlarged thyroid or other thyroid disorder has occurred. You should go to the hospital promptly at this time. Your doctor can usually tell you whether your thyroid gland is enlarged and whether there is a lump by palpating the thyroid gland. There are many different thyroid disorders, and those who have an enlarged thyroid gland or a swollen thyroid gland generally need further tests to determine the nature of the thyroid disorder, such as blood tests to check thyroid function and, if necessary, radionuclide and ultrasound examinations of the thyroid gland, or even cytology of thyroid puncture. When you have symptoms such as fear of heat, excessive sweating, palpitations, anxious temperament, hyperphagia, and weight loss, you should think about the possibility of hyperthyroidism. When you notice symptoms such as fear of cold, swelling, weight gain, dry skin and loss of appetite, you should be aware of the possibility of hypothyroidism. When you feel pain and fever in the neck, especially when you can feel a lump in the thyroid area and have pressure pain, you should think about the possibility of acute or subacute thyroiditis. If you encounter any of these conditions, you should go to the thyroid department of the hospital in time for further examination so that you can get a timely diagnosis and reasonable treatment.