what are normal levels thyroid men
In the U.S., the reference range used is 0.50 to 5.5 mIU/L. According to the revised American standards (set by expert endocrinologists), 0.3 to 3.3 mIU/L should be considered as the normal TSH level in adults. Some labs consider 0.4 - 4.0 mIU/L or 0.4 - 4.5 as normal TSH levels. Normal levels of TSH for men and women are same. Symptoms of Low TSH in Men. Low TSH levels indicate hyperthyroidism. Low TSH can be noticed if pituitary gland is damaged (the condition is known as secondary hypothyroidism). Excessive intake of thyroid medicines to stimulate an under-active thyroid gland can also lead to low TSH levels.