Thyroid hormone abnormalities refer to abnormally high or low T3, T4 or TSH in thyroid function tests. Abnormally elevated T3 and T4 in thyroid function tests are generally considered to be symptoms of hyperthyroidism, resulting in weight loss, fatigue, emotional irritability, or hypermetabolism. Patients may eat more but lose weight. In severe cases, some cardiac symptoms may be complicated, including hyperthyroid heart, significantly increased heart rate, chest tightness and shortness of breath. For abnormal decrease in T3 and T4 in thyroid function measurement, underactive thyroid or hypothyroidism is generally considered, and the resulting symptoms are usually mucinous edema, and the patient often has weakness, low fever, or swelling of the skin and face, which is not relieved by proper rest. Normal thyroid function is restored. Therefore, when thyroid hormone abnormalities occur, it is best to go to a regular hospital for detailed consultation and diagnosis, and to carry out systematic and standardized treatment for the cause.