Thyroid gland disease if there is a huge mass, may compress the trachea, causing some impact on breathing, or malignant tumors of the thyroid gland appeared lung metastasis, will also cause some impact on breathing. In general, the effect of the thyroid gland on breathing is relatively small, if the size of the thyroid mass is large, causing pressure on the trachea, which will lead to symptoms of dyspnea. Malignant tumors of the thyroid gland, such as thyroid cancer, that have metastasized to the lungs may affect breathing and may cause symptoms such as hemoptysis. If you are experiencing discomfort such as goiter or breathlessness, you should consult a doctor in time for diagnosis and treatment under the guidance of a doctor.