Thyroid hormone or Testosterone?

Rhino 2.0

Member
Can low total T3 levels cause symptoms of low testosterone?? I have symptoms of low t but i don't know if there related to testosterone because I have normal levels. Total testosterone is 645ng/dl and free restoserone is 17.6 pg/ml from a range of 9.3-26.5. I got estradiol measured a couple times and it came pack at 30 pg/ml once and 36pg/ml the second time. My thyroid test showed TSH being normal below 2 and fee t4 was perfectly in range. My total T3 however was low and 72 and the range was 76-181. So I am wandering if my symptoms are caused by my low t3 level, estrogen, or testosterone ? would love to hear what you think! thanks!
 
No i have not. I should probably get a full thyroid panel though. Doctors these days think you're normal if you're TSH and free T4 are good so It might be hard to get everything tested. But if you are hypothyroid you are supposed to feel cold all the time? I never feel cold.
 

hCG Mixing Calculator

HCG Mixing Protocol Calculator

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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