Thyroid masses are commonly caused by the following: first, endemic goiter, which is often caused by low iodine intake and requires a hospital visit for ultrasound of the thyroid gland and thyroid function for clarification. If this is the case, active iodine supplementation is required. Secondly, nodular goiter, which is often caused by long-term overexcitement and autoimmune factors, requires adjustment of lifestyle habits, such as reducing anger, not eating too spicy food, not drinking alcohol, etc. If necessary, surgical treatment is required. Thirdly, thyroid tumors can be both solitary and multiple. If the tumor is small and not considered malignant, there is no need to worry too much and regular review can be done. If there are obvious changes in the condition, it may be necessary to perform puncture treatment or interventional treatment, or to perform surgical resection. There are other diseases, such as malignant tumors of the thyroid. In conclusion, if you find a lump in the thyroid gland, you should review it regularly and give the relevant treatment according to the results.