A thyroid cyst cannot be left alone for the rest of your life; it has the potential to become malignant after all. The treatment of a thyroid cyst needs to be determined by its nature, size and the presence of symptoms. If the thyroid cyst is small, the patient is in good condition and basically has no uncomfortable symptoms, he can be followed up and observed, and the ultrasound of the thyroid gland should be reviewed once every three months. However, once the discomfort appears, promptly admit to the hospital for examination. If the lesion gradually increases and there is pressure on the trachea, or if there are obvious symptoms of pain and discomfort, surgery is recommended to remove it. In daily life, you can eat more iodine-rich foods and avoid high cholesterol foods and foods with greater greasiness. Do not smoke, drink alcohol, and eat more vegetables and fruits. Ensure a relaxed mood, avoid excessive mental stress, eat reasonably and pay attention to rest.