Thyroxine is an important hormone secreted by the thyroid gland and is a substance vital to human metabolism. Specifically, the importance of this hormone is illustrated by the wide range of symptoms produced by thyroid disorders, which can be seen in the wide range of hormones affected. Thyroid disorders such as hyperthyroidism, when the hormone secretion is too much, can appear easy to excite, easy to lose temper, eat a lot but lose weight, muscle and bone pain, weakness, increased heart rate and even heart hypertrophy, heart failure, low sexual function, including menstrual abnormalities and impotence symptoms; other signs such as protruding eyes, hand tremors, etc. From the above, we can see that the effect of thyroxine affects almost all the body The effects of thyroxine affect almost all systems of the body, especially the functions of many important systems. The effects of thyroxine on the reproductive system are all negative or suppressive. Either too much or too little thyroxine is produced, resulting in decreased libido, abnormal menstruation and erectile dysfunction. It is not the case, as one might suspect, that a high secretion of thyroxine leads to a high libido and a low libido leads to a low libido. There is an obvious link between thyroid disorders and sexual function, and the appearance of impotence is common, yet it is rare to see a clinical consultation for impotence. 1. Hypothyroidism: Hypothyroidism is caused by insufficient secretion of thyroxine. The corresponding clinical symptoms are coldness, dry skin, weight loss, indifference, edema, constipation, etc. The above symptoms are accompanied by low libido and impotence, and some people can be examined for increased prolactin content in the blood. The first thing you need to do is to take thyroxine medication to replenish your body’s thyroxine content and to restore your libido and erectile function. 2. Hyperthyroidism: Hyperthyroidism is caused by excessive secretion of thyroxine. The corresponding clinical symptoms are sweating, fatigue, fast heart rate, eating and weight loss, etc.; some people will also appear breast enlargement, emotional excitement and impotence, which is not, as some people say, entirely due to psychological factors (of course, the influence of psychological factors can not be completely excluded, especially those who are sexually repressed and conservative sexual concepts). Low libido and impotence are a manifestation of hyperthyroidism, and some people think that no special treatment is needed, as long as the hyperthyroidism can be controlled, the sexual problem can be solved. In fact, psychological treatment should be given to these patients. One phenomenon worth raising is that the level of testosterone in the blood is increased in hyperthyroidism. This increased testosterone may be the result of high metabolism in the organism. But these testosterone are adsorbed on plasma proteins. As we know from the previous introduction, only free testosterone has a real biological effect, while testosterone bound to plasma proteins has no biological effect. Testosterone in the blood in hyperthyroidism is in this protein-bound state with no biological effect, and they cannot release the adsorbed kujiu ketones and dissociate into free testosterone. Therefore, even if there is more testosterone in the blood, it does not work and impotence ensues.