male infertility; ejaculation; semen analysis

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  1. madman

    Ejaculation: the Process and Characteristics From Start to Finish

    Ejaculation: the Process and Characteristics From Start to Finish (2023) Matthew M. Mason, Kyle Schuppe, Alexander Weber, Aaron Gurayah, Akhil Muthigi, Ranjith Ramasamy Abstract Purpose of Review—Semen analysis serves as the initial step in the evaluation of male infertility. However, given...
  2. madman

    Infertility in men: assessment and treatment

    Infertility in men: assessment and treatment (2022) By Ramjan S Mohamed, Danai T Balfoussia & Channa N Jayasena An overview of the causes and endocrinology of male infertility considering the available treatment options, the role of medicines, and how pharmacists can support patients. CPD...
  3. madman

    Normal physiology of ejaculation

    Ejaculation: the Process and Characteristics From Start to Finish (2022) Matthew M. Mason · Kyle Schuppe · Alexander Weber · Aaron Gurayah · Akhil Muthigi · Ranjith Ramasamy Abstract Purpose of Review Semen analysis serves as the initial step in the evaluation of male infertility. However...
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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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