When we have had thyroid surgery, our doctor may recommend that we take medication for a long time to maintain our thyroid hormone levels. Long-term medication often causes life and mental distress to the patient. Can we skip the medication? Let’s still take a look at what thyroid hormones actually do. Main physiological functions of thyroid hormone 1. Promote metabolism: Physiological levels of thyroid hormone have a role in promoting the synthesis and decomposition of sugar, protein and fat. 2.Promote growth and development: It can enhance the activity of growth hormone. 3.Promote the differentiation and maturation of the nervous system: It plays a very important role in the maturation of the cerebral cortex, and thyroid hormone deficiency will lead to memory loss and slow reaction in adults. What role does thyroid hormone play in each organ system? 1. Cardiovascular system: Excess thyroid hormone causes increased heart rhythm and increased heart contraction, which can seriously lead to heart enlargement and heart failure, and atrial fibrillation in the elderly; conversely, it causes slowed heart rhythm and weakened heart contraction, and even pericardial effusion; 2. 3. Digestive system: When thyroid hormone is excessive, gastrointestinal motility is accelerated, resulting in easy hunger and increased bowel movements; conversely, gastrointestinal motility is slowed, resulting in poor appetite, reduced bowel movements or constipation; 4. Reproductive system: When thyroid hormone is deficient, it can cause delayed gonadal development, non-ovulation, infertility, menstrual disorders and functional uterine bleeding; when thyroid hormone is excessive, it can cause scanty menstruation and functional uterine bleeding. Excessive thyroid hormone can cause scanty menstruation, prolonged menstruation, difficulty in conception, miscarriage, premature birth and fetal malformation. The thyroid gland is small and insignificant, but the physiological functions of the thyroid hormones it secretes are enormous. These functions are closely related to our daily life. After thyroid cancer surgery, it will lead to the lack of thyroid hormone, so we need to supplement thyroid hormone in appropriate amount, and at the same time the appropriate amount of thyroxine can prevent cancer recurrence; while thyroid nodules only need short-term supplementation of thyroid hormone after surgery. Take the medication regularly after surgery, review it regularly, and adjust the medication according to the doctor’s suggestion. Although the body has been afflicted, we can maintain a good quality of life by insisting on these points!