High thyroid refers to a high level of thyroid hormones in the body. Thyroid hormones are secreted by the epithelial follicular cells of the human thyroid gland and enter the human body with blood distribution, which can regulate the functions of human tissues and organs, etc. It can also promote the metabolism of the three major nutrients in the body, sugar, fat and protein, and promote faster movement of the gastrointestinal tract. Therefore, high thyroid hormone is prone to symptoms such as hunger, heart panic, increased heart rate, irritability, and loss of mental and emotional control. In addition, thyroid hormone also affects the distribution of calcium ions in the body and has an impact on bone growth, so high thyroid hormone can also lead to enlarged thyroid nodules in humans. When patients have high thyroid symptoms, they should go to a regular hospital for treatment, take relevant medications, and if necessary, patients need to have their thyroid gland partially or completely removed to stabilize their body’s life safety.