My free T is 99th percentile

Asiangymmax

Asiangymmax

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I would gladly be 200 ng/dl total 5 ng/dl free to be 130 iq
 
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Mogs me
 
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What’s the diff between free test and regular test what crime did my test commit so it’s not free
Here’s a clear breakdown of the difference between total testosterone and free testosterone:














1. Total Testosterone








  • Definition: This is the sum of all testosterone in your blood.
  • Includes:
    • Bound testosterone (most of it):
      • ~60–70% is tightly bound to SHBG (sex hormone-binding globulin)
      • ~20–30% is weakly bound to albumin

    • Free testosterone (only 1–3%)







🧪 Total T = SHBG-bound + albumin-bound + free testosterone





  • Used for: General screening or diagnosis of testosterone deficiency (hypogonadism)
  • Limitation: Can be misleading if SHBG levels are abnormal (e.g. due to age, thyroid problems, obesity)
















2. Free Testosterone








  • Definition: This is the unbound testosterone circulating in your blood.
  • Biologically active form – can enter cells and activate testosterone receptors.







🧬 Free T = Testosterone that actually “works” in your body





  • Used for: Evaluating symptoms when total T is borderline or when SHBG is abnormal.
  • More reflective of how much testosterone is available to tissues.
















⚖️ Analogy








Think of testosterone like money:





  • Total testosterone = All your money (cash + money in the bank + locked in a vault)
  • Free testosterone = Cash in your pocket you can spend right now
















When to test which?





SituationBest Test
General checkTotal T
Borderline T or symptoms don’t match total TFree T
Known SHBG issues (e.g. thyroid disorder, liver disease, obesity)Free T or calculated free T










Let me know if you want help interpreting your own testosterone levels.
 
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