A 24-year-old female asked:
can hyperactive thyroid increase your testosterone lvl? and if so will thyroid medication help bring it down?
1 doctor answer • 2 doctors weighed in
Urology 44 years experience
See answer: Testosterone (T) exists in blood in three forms: 50-60% tightly bound to Sex Hormone Binding Globulin (SHBG) protein (biologically inactive); 40-50% weakly bound to Albumin protein (active); and 3-5% unbound/Free T (active). Hyperthyroidism can cause higher levels of SHBG (inactive T) leading to higher serum levels of Total T, but unchanged or relative decrease in the two active forms of T.
4007 viewsReviewed >2 years ago
Last updated Jun 24, 2014
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