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  1. Systemlord

    New blood work

    Please share lab results instead of saying RBC is high, then we can have a more productive conversation. Why do you think high red blood cells, hematocrit and hemoglobin is bad for you? TRT is likely pushing your ferritin down, the blood donations may not benefit you anymore.
  2. Systemlord

    New blood work

    You now may have a reason for low ferritin. Why are you donating blood? Donating blood will lower ferritin which then requires iron supplements which will increase the hemoglobin. You see the problem here?
  3. Systemlord

    New blood work

    Your ferritin levels are low and may or may not be a problem. Testosterone increases hemoglobin and hematocrit which uses up iron, ferritin is iron storage. Iron deficiency without anemia would see normal but bottomed out hemoglobin and low MCH, MCV, MCHC and high RDW. If you were to raise the...
  4. Systemlord

    Advice About Hematocrit and TRT Dose

    Testosterone increases red blood cells, same as if you lived at high elevation. So basically if you go from sea level to Boulder, Colorado, the first thing that’s going happen is your testosterone is going to increase (above 4000 ft) and your hematocrit and hemoglobin are going to go up. If you...
  5. Systemlord

    Advice About Hematocrit and TRT Dose

    Glenn Cunningham, the doctor that wrote the guidelines for hematocrit. Dr. Abraham Morgantaler, asked him both on stage and in person where did you come up with hematocrit 54% cut off? His answer was we actually don't have much data to say anything but we had to pick a number and it seemed like...
  6. Systemlord

    Advice About Hematocrit and TRT Dose

    You misunderstand, I'm saying high hematocrit doesn't cause those issues. There are medical conditions, diseases that leads to high hematocrit (sleep apnea, polycythemia vera, COPD) and it's the disease NOT the high hematocrit that causes those issues. These diseases starve the body of oxygen...
  7. Systemlord

    Advice About Hematocrit and TRT Dose

    Your doctor is flat out wrong and is operating outside his scope of medicine. The Traverse trial squashed the myth of testosterone related heart attack, blood clots, and strokes. The FDA is removing the black label warning from testosterone products...
  8. Systemlord

    Advice About Hematocrit and TRT Dose

    https://www.excelmale.com/threads/oral-tu-offers-a-safe-and-effective-long-term-treatment-option-for-men-with-hypogonadism.26398/ https://www.excelmale.com/threads/my-experience-on-jatenzo-oral-trt-log.23595/
  9. Systemlord

    Advice About Hematocrit and TRT Dose

    Seems like you would do better oral T, Jatenzo or Kyzatrex. The half-life is similar to gels only you don't have to worry about absorption issues or transferring Test to children. The clinical trials showing only a very small percentage of men experienced erythrocytosis. The recommended...
  10. Systemlord

    Kyzatrex or Jatenzo

    https://www.testosterone.org/free-testosterone-levels/ https://www.excelmale.com/threads/testosterone-level-how-low-is-too-low-health-consequences-of-low-testosterone.1719/ https://www.excelmale.com/threads/how-to-find-a-good-doctor-that-prescribes-trt.28412/
  11. Systemlord

    Kyzatrex or Jatenzo

    https://www.excelmale.com/threads/what-is-a-normal-blood-level-of-testosterone-what-do-guidelines-say.1395/
  12. Systemlord

    Kyzatrex or Jatenzo

    The Total T doesn't define testosterone deficiency, the FT is what truly matters. Your endo is operating outside his scope of medicine and just is ignorant on the topic of male sex hormones. This is quite common since it isn't taught in mainstream medicine schools. The endocrine society...
  13. Systemlord

    New Member -- Will Take All the Advice I Can Get; Initial Questions re Dose

    This is a bad sign, targeting a lab number rather than symptom resolution. FT should be targeted at the top of the ranges or higher. TT doesn't tell the whole story.
  14. Systemlord

    WAS: 5 months post stopping TRT cold turkey bloodwork , NOW: Wife No Longer Wants Sex

    That's a ticket to divorced for me. The woman I'm courting now, 27 year age gap, hehe, I told her when I feel like the deal is one-sided, I'm gone! The man needs to lead, the woman follows and serves and allowing the woman to have that kind of power over her man is unacceptable. I'm putting...
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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