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  1. J

    6 month blood work - going to twice per week - update

    Hi all - quick update on my recent doc visit today. Been on steady TRT since last September. 34 years old had the pit MRI etc when my inital tests came back at nearly zero last summer. Everything checked out and I was diagnosied with secondary idiopathic hypogonadism. My protocol has been...
  2. J

    How often to do blood tests

    Hi All, Sorry this may have already been posted, but I've been searching for a bit and did not find anything on this. My question is how long should I go between blood tests. Quick snapshot, the first appt with this doctor was in August levels were below 200, he put me on 100mg per week for 2...
  3. J

    New Just Starting TRT

    Hello All, Lost my sex drive and erections about 6 months ago. 33 years old, 5'9 180, muscular, full beard and chest hair, always put on muscle easy. Started feeling tired and lost interest in hobbies etc. Joint pain, hot flashes, excessive sweating, anxiety/depression the whole bit. Went...
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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