red blood cells

  1. A

    Anybody use low low low normal dose to successfully address high hemoglobin and hematocrit levels?

    Anybody use low low low normal dose to successfully address high hemoglobin and hematocrit levels? I am currently down to only 75mg a week (100mg strength vial). Even doing daily shots now for months and months and my numbers still keep creeping up until i have to donate blood! At what point...
  2. Nelson Vergel

    Testosterone replacement therapy and its effect on bone marrow

    Bratislava Medical Journal Vol.118, No.11, p.654-657, 2017 Title: Testosterone replacement therapy (TRT) and its effect on bone marrow. How serious is it and is there a true polyglobulia? Author: M. Levcikova, J. Breza Jr, J. Luha, J. Dubravicky, E. Kovacova, J. Fillo Abstract: INTRODUCTION...
  3. Nelson Vergel

    Erythrocytosis Following Testosterone Therapy.

    Erythrocytosis Following Testosterone Therapy. Review article Ohlander SJ, et al. Sex Med Rev. 2017. Authors Ohlander SJ1, Varghese B2, Pastuszak AW3. Author information 1University of Illinois at Chicago College of Medicine, Chicago, IL, USA. 2Baylor College of Medicine, Houston, TX, USA...
  4. Nelson Vergel

    Hematocrit may stabilize after long term testosterone replacement

    Hematocrit may stabilize after long term testosterone replacement Although this study was done in mice, it may explain why hematocrit may eventually decrease and stabilize in men on TRT. I am one of those men who only went for therapeutic phlebotomy twice. There seems to be an adaptive...
  5. M

    High Red Blood Cells and no cure

    Hello, my results on follow levels are always around RBC 6.38 Hemoglobin 18.8 Hematocrit 55.4 which is considered high. I am feeling great on TRT. There are only two options, as far as I know, to lower these levels. Stopping TRT, which draws you back to the shitty feeling when you were...
  6. Excel Male

    How to Lower High Hematocrit Caused by Testosterone Replacement Therapy (TRT)

    High Hematocrit Caused by Testosterone Replacement Therapy By Nelson Vergel, B.S.Ch.E., M.B.A. High hematocrit occurs when there is an excessive production of red blood cells. High hematocrit can cause the blood to become very viscous or "sticky," making it harder for the heart to pump. High...
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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