Hypothyroidism, i.e. heart disease caused by hypothyroidism, requires active treatment of the primary disease and symptomatic treatment with drugs such as nitroglycerin as prescribed by the doctor. 1. Treatment of primary disease: patients with hypothyroid heart disease first need to control the primary disease that is hypothyroidism, through exogenous supplementation of thyroid hormone. Commonly used drugs are levothyroxine sodium tablets, which should be applied from a small dose and gradually increased to fully meet the needs of the body. 2. Symptomatic treatment: hypothyroidism heart disease often has angina pectoris manifestation, can be applied to nitrate drugs for relief, commonly used nitroglycerin, isosorbide mononitrate and so on. In general, after the control of hypothyroidism, the hypothyroidism heart disease will be relieved and disappear. Should actively treat the primary disease, under the guidance of the doctor reasonable use of drugs.