Recent content by Samuel Elliott Cappiello

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Penis & Scrotum Ultrasound

It was admittedly awkward, but the doctor was extremely professional. It's hard to treat a biological sexual disorder without objective measures. This is an objective measure, and knowing that made the test seem appropriate however awkward. If you aren't having any sexual dysfunction, I'm not...
- Samuel Elliott Cappiello
- Post #16
- Nov 4, 2013
- Forum: Testosterone Basics & Questions
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Penis & Scrotum Ultrasound

I had this test done at Cornell Sexual Medicine in NYC. "Duplex Doppler Penile Ultrasound." It appeared on my insurance as "Corpus Cavernosum Study." They injected a drug (alprostadil) at the base of my penis to induce an erection, because it would be unlikely that I could achieve and maintain...
- Samuel Elliott Cappiello
- Post #7
- Nov 4, 2013
- Forum: Testosterone Basics & Questions

TRT Hormone Predictor Widget

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