primary

  1. B

    Determining Primary vs Secondary after TRT

    Hey guys, I'd like to determine if I am primary or secondary hypogonadic. Unfortunately, the blood work I had done pre-trt were very minimal and only show TT. Of course, my current blood work shows my LH, FSH, etc. are near zero. Is there a way I can determine if I am primary or secondary...
  2. S

    Primary/Secondary Hypogonadism?

    Hi all, This is my very first post on a newly created account. Sorry, it might be a long post. I've been dealing with a lot. Since June of 2017, I've been doing a lot of research on men's health on the internet. I've been dealing with a myriad of symptoms regarding testosterone for...
  3. K

    5 week Clomid Results with Primary Hypogonadism Diagnosis

    Hello Forum! I hope some of you may be able to help me with my situation. I am 35yr old male - pretty healthy (slightly overweight) - 6'1" 220 pounds. (20-25 pounds overweight) In Feb 2015 - I went to the urologist to get my ED situation checked. He checked my testosterone levels - and I had...
  4. P

    Does testosterone replacement cause primary hypogonadism?

    I am secondary hypogonadal, and I currently take HCG monotherapy. Together with eating "paleo" and avoiding other foods I'm sensitive to, and focusing on better sleep, etc., I'm feeling more energetic, upbeat and focused. However, I'm still mildly depressed with very little libido, and I don't...
TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

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

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