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  1. H

    Two failed blood donations. Worried about hematocrit.

    I take TRT via injection. The last two times I donated blood, the phlebotomist messed up and only got a partial draw. The rules are that once you get stuck, they can't switch arms. So instead of having given blood twice, I barely gave much blood in either draw. I've noticed my eyes are a bit...
  2. H

    Repeat Bout of Low Estradiol

    Hey guys-- Back in June, I posted this -- suspecting I had high E2 but it turned out (as many of you who replied had suggested) that it was in fact low Estradiol. Once I got my hormones back in a good spot, the symptoms went way. Fast forward to now. Out of nowhere, I started having some ED...
  3. H

    High E2?

    Here's my current protocol: Test Cyp 200 mg/ml – 0.45 ml IM/SQ 2 times weekly HCG 400 iu SQ 2 times weekly Anastrozole 0.5 mg 2 times weekly I've been on TRT for a little over two years, and it's been good. I got dialed in pretty early. My most recent labs were 733 T, 20.3 Free T, 28.4...
  4. H

    TRT increasing blood pressure?

    I've been on TRT through Defy for about two years, with great results. This is my protocol: Test Cyp 200 mg/ml – 0.45 ml IM/SQ 2 times weekly HCG 400 iu SQ 2 times weekly Anastrozole 0.5 mg 2 times weekly I am 41 y/o, 5'7", 190 pounds; work out, CrossFit-style, four to five times/week, with a...
  5. H

    Would this likely be low or high E2?

    I am experiencing some symptoms that I suspect are related to high E2 -- but I also wonder if low E2 could be the cause. I'd appreciate any thoughts from the hivemind here. Current regiment: T Cyp 200 mg/ml and HCG 400 iu -- both twice weekly. Also take .25 Anastrozole twice weekly, taken at...
  6. H

    Do you guys really think I'm a good candidate for TRT?

    Hey guys, Thanks for all the knowledge on this forum. It has really helped me as I've researched TRT. I am struggling with whether I should use TRT, given that my numbers appear to be borderline, and I'd like some advice. Here's the deal: I am 39, and about two years ago, following a...
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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