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  1. Les

    Lab error possible?? Hematocrit very high

    Very concerned. My hematocrit went from 51 to 57 in 4 months. My doctor thinks it's a lab error and has redrawn a CBC. He says an increase in 4 months that drastic just doesn't happen so quickly in his experience. I should know pretty quickly whether or not I need to visit the Red Cross to...
  2. Les

    Low estradiol caused by possible weight loss

    Low estradiol possibly caused by weight loss Just received my quarterly lab results back. I have been on 100mg cypionate weekly for the last six months with fairly consistent free/total t results and an E2 having been in the high 20s until this last draw. My E2 dropped to 9 pg/mL (ref range...
  3. Les

    HCG dose help

    Been on cyp 10 weeks. My doctor is injecting 200mg/wk cyp, and now started 1mg/wk arimidex. TT 520 on day 6, FreeT 130 (ref 35-155), E2 52H, HCT 54H and have removed 1 unit. Dr wants to dose HCG at 3,000IUs twice weekly. I haven't seen anyone dose more than 2,000IU/wk max anywhere online. Is...
  4. Les

    Blood Tests - So What's Next For Me?

    I have been on Androgel for 1 month and my levels have not changed much. 46 yo, 6'3", 285 lbs, Type 2 DM, orals, A1c 5.1 Eating clean, majority of carbs from vegetables, walking 6 days/wk, free wts 3 days/wk. BLOOD TESTING: Just Before starting TRT: Total T 293 (ref 262-1593), Free T 38...
  5. Les

    Total T takes a dive after a month on Androgel

    I started on Androgel 1.62 40.5mg daily last month with a total T of 290 (260-1600rr) and a free T of 38 (47-244rr). I felt much better the first three weeks, and slowly got back to the feelings of low motivation, energy, and drive. My total T just came back lower at 157 (260-1600rr). Still...
  6. Les

    I have low T and need a good doctor

    Just beginning to learn about low t and therapies available. Had total t tested as part of an annual physical based on a questionnaire which determined the tests ordered at the lab. Was puzzled since I wasn't asked about libido, etc. why they wanted to test for low t. I read about the symptoms...
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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