When SHBG is far from normal you need to look at the free hormones, which largely govern outcomes. As indicated, free estradiol is unremarkable....
They don’t offer the sensitive test in the uk, so this is the best I can get. What concerned me was that I’m c20% over the highest reference point, on both tests.
Have you got a conversion tool to get to the pg/ml values? I had a look online before but was unsure on the best one to use.
Could SHBG be causing this to be inflated? Or does it not work like that.
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I use this calculator to convert estradiol to the units we're used to.
High SHBG is naturally linked to higher testosterone and estradiol. The body is attempting maintain free hormone levels via testosterone production. As SHBG rises the free hormone levels will fall, but the body compensates by making more testosterone, some of which is naturally converted to estradiol. There's additional complexity, in that estradiol contributes to SHBG production in the liver. You'd think this positive feedback could lead to runaway levels, but apparently other limitations keep things under control.