The hormone driving the thyroid or TSH, which means the cells of the anterior pituitary secretion, can be, in control of the thyroid function plays a pivotal role and have the most useful markers of physiological activity of thyroid hormone. The main factor determining the set point on the axis of the thyroid hormone TSH is. The secretion of this hormone by hormone thyrotropin or TRH can be regulated. TRH is the major stimulus synthesis and secretion of TSH is. Almost 15 minutes after administration of TRH the rate of secretion of TSH reaches its maximum. Reduced levels of thyroid hormone increase the production of the base TSH and intensify the stimulatory effect of TRH on TSH can be. Increase the level of thyroid hormone is also rapidly and directly TSH inhibits, as well as the stimulatory effect of TRH on TSH and inhibit the work. This suggests that the thyroid hormone is the main factor regulator of the production of TSH are. Such as other hormones , etc. TSH for profiles used in tea secreted and the amount of its secretion in different hours of a day is different. The maximum amount of secretion of this hormone at night, when The occur, and because fluctuating hormone TSH is mild a load, measure it, to assess the amount of hormone in the blood circulation is sufficient.

hormonal disorders of the thyroid gland has a direct influence on the incidence of infertility is, therefore, investigate the causes of these disorders at the beginning of the infertility treatments are essential and important. To consider doctors thyroid disorders of the most common disorders of the glands, especially in women with both obvious and hidden. About one to two percent of the causes and problems of fertility and low fertility in women related to the problems of the glands, including the thyroid gland. Disorders of the thyroid gland in males also puberty cause short stature or delay of puberty in youth, causing disability, sex, but overall, its prevalence in men much less than women.