opinions

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Bloodwork results and opinions/advice

My whole adult life I've taken steps to keep my testosterone levels healthy. Avoiding processed sugars, wearing only cotton boxers, shower filters, etc. Work out 4x a week and do cardio. Was even on a carnivorous diet for a while. Not because I suspected my levels to be low, but just because i...
- anon9968
- Thread
- Nov 19, 2025
- advice advice on labs opinions
- Replies: 21
- Forum: Blood Test Discussion
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Primary or Secondary?

I am trying to figure out if i am primary or secondary... My LH is 3.54 and my FSH is 1.46 Ive read up a lot on treatment, protocols etc... but was just curious if i'm primary or secondary? I've had 5 years of low T bloodwork, and at 41, assume i'll probably be better off to just take the...
- IndyColts18to88
- Thread
- May 25, 2022
- new to trt opinions primary or secondary questions
- Replies: 10
- Forum: Testosterone Basics & Questions

TRT Hormone Predictor Widget

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038