Great free t lousy total t

[charile12]

Please see results below for a 19yo.

The free t surprised me cuz it's high normal. But the total t is low. I gather he has a low shbg which they didn't test.

Would you treat this for low t despite having a great free t?


Testosterone, Free, S
Normal Range: 5.36 -
21.2 ng/dL

17.8 result

Testosterone, Total by
Mass Spectrometry,
Serum
Normal Range: 240
950 ng/dL

386 result

 

[Systemlord]

Testosterone, Free, S
Normal Range: 5.36 -
21.2 ng/dL

Not all normal ranges are created equal. If your FT really is this good, you have lower end SHBG, higher SHBG, higher TT, independent of the FT.

Would you treat this for low t despite having a great free t?

If your FT is accurate, you don't have low-T. FT is the testosterone that matters, the TT is less important. FT drives the effects or benefits of testosterone.

Also, the absolute hormone value means little on its own. One must consider your AR gene CAG repeat number. This tells you how sensitive to testosterone you are. A high sensitivity, you need less testosterone to function normally, higher CAG repeat number, you need more to get the same androgenic action as the person with fewer CAG repeats.

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Testosterone, Total by
Mass Spectrometry,
Serum
Normal Range: 240
950 ng/dL

386 result

This is a new trend, testosterone is getting lower with each new generation of men. There's a belief that whatever is causing it, is also causing the sperm count decline.

Your TT won't be 386 tomorrow, it will be higher one day, or lower the next and change day to day. You get better sleep, workout, eat red meat, T goes up. Consume sugar, processed foods and T goes down.