Thyroid diseases include thyroid nodules, thyroid inflammation, and many detectable functional abnormalities. If thyroid diseases refer to diffuse diseases, they also refer to functional abnormalities. If they are diffuse diseases, they actually do not need special intervention. If functional abnormalities occur, they may need clinical intervention, Therefore, the lesion still depends on what the lesion is, whether it is inflammation or nodule or thyroid cancer or adenoma. Therefore, thyroid lesions have different clinical significance depending on what problem is causing them.