WASHINGTON--New research suggests that a slightly underactive thyroid may affect a women's ability to become pregnant--even when the gland is functioning at the low end of the normal range ...

By sex The normal range of TSH is generally the same for males and females, typically between 0.4 and 4.0 mIU/L. However, some research suggests females have higher TSH levels.

What is a normal TSH by age? Doctors explain the numbers Most labs define the normal range of TSH for adults as 0.4 to 4.0 mIU/L. That said, doctors will often look at more than just the number.

Higher TSH levels within the normal range are associated with unexplained infertility. The Journal of Clinical Endocrinology & Metabolism, 2017; DOI: 10.1210/jc.2017-02120 ...

"Normal variations in thyroid function may be linked to atrial fibrillation risk." ScienceDaily. ScienceDaily, 23 January 2019. <www.sciencedaily.com / releases / 2019 / 01 / 190123164952.htm>.

A slightly underactive thyroid gland, the low end of normal, may help to explain some infertility of unknown cause, according to findings of a cross-sectional study published online in the Journal ...

The current study, published today in the journal JAMA Cardiology, found that genetically determined variations in thyroid function, even those which fall within a physiologically accepted "normal ...

Normal reference ranges of blood levels of thyroid-stimulating hormone and free thyroxine may not be suitable to determine thyroid function in patients with various types of cancer.

More information:JAMA Cardiology (2019). DOI: 10.1001/jamacardio.2018.4615 Journal information:JAMA Cardiology Provided by Vanderbilt University Medical Center : Normal variations in thyroid ...