The Testosteronology Society® is the professional organization advancing Testosteronology®, an emerging clinical discipline dedicated to testosterone, androgens, hormone medicine, and long-term care for patients whose health is influenced by these therapies.

Founded by Thomas O'Connor, M.D., the Society was created to close a major education gap: clinicians are treating complex testosterone, androgen, anabolic-steroid, and IPED patients without consistent training in androgen physiology, lab interpretation, cardiometabolic monitoring, risk management, harm reduction, or long-term care.

At the center of the Society is the Testosteronology® Professional Education Program, a 14-course clinical training program for physicians, nurse practitioners, physician assistants, pharmacists, TRT clinics, men's health providers, telemedicine clinicians, wellness clinics, endocrinology providers, urology providers, and clinicians treating steroid and IPED users.

The program provides a structured, evidence-informed framework for clinical decision making across testosterone deficiency, anabolic-androgenic steroid exposure, IPED use, history and physical examination, laboratory evaluation, testosterone therapy management, A.R.M.® harm reduction, legal and regulatory considerations, and the ABCDS™ Framework.

Members gain access to the Professional Education Program, Society TRT Guidelines, Grand Rounds case discussions, topic presentations, education updates, the Society Insights Newsletter, and a community committed to raising the standard of care in testosterone and androgen medicine.

Our mission is to unite and empower healthcare professionals through education, collaboration, standards, and development so clinicians can deliver safer, smarter, and more effective care.

For clinicians committed to the highest standard of care, the Testosteronology Society® provides the training, framework, and community needed to lead the future of testosterone, androgen, and hormone medicine.

Testosteronology Society®

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Testosteronology Society®

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