Testosterone & Bone Health
1) Evidence Summary
Low testosterone reduces bone density (BMD) and increases fracture risk as men age.
Testosterone converts to estradiol (E2), which helps maintain bone by reducing resorption.
TRT can increase spine BMD by ~3–4% over 12–24 months in hypogonadal men; hip gains are smaller.
No clear evidence that TRT prevents fractures. Muscle strength and falls remain key factors.
2) When TRT is Appropriate
Use TRT for symptomatic, biochemically low testosterone, not as a sole treatment for osteoporosis. Eligible men typically have:
Confirmed low morning testosterone (twice tested; check free T if SHBG abnormal),
Plus osteopenia/osteoporosis, sarcopenia, or other hypogonadal features.
3) Levitas Clinics Pathway
Assessment: Symptoms, falls history, labs (TT, SHBG, cFT, LH/FSH, prolactin, PSA, FBC, CMP, lipids, HbA1c, TSH, 25(OH)D), DXA, and FRAX.
Treatment:
TRT: gel, short-acting IM, or long-acting TU targeting mid-normal physiological range.
Bone stack: vitamin D, calcium, protein, resistance/balance training, and bone medications if indicated.
Monitoring: 6–8 weeks after starting, then 3–6 monthly in year 1; review testosterone, haematocrit, PSA, BP, weight; DXA at 12–24 months.
4) Safety and Contraindications
Risks: erythrocytosis, prostate effects, OSA worsening, fluid retention.
Avoid in prostate/breast cancer, haematocrit >54%, uncontrolled heart failure, or severe OSA.
5) Expected Outcomes
TRT improves symptoms and increases spine BMD when testosterone is low.
TRT alone has not been proven to reduce fractures—optimal results come with combined nutrition, exercise, and bone-specific therapy.
Levitas Clinics provides: expert LOH assessment, tailored TRT regimens, integrated bone optimisation, and continuous safety monitoring.
Key References
- Shigehara K, Izumi K, Kadono Y, Mizokami A. Testosterone and Bone Health in Men: A Narrative Review. Int J Mol Sci. 2021;22(3):1680. PMCID: PMC7867125.
- Isidori AM, Giannetta E, et al. Effects of testosterone on body composition and bone metabolism in middle-aged men: A meta-analysis. Clin Endocrinol (Oxf). 2005;63(3):280–293.
- Snyder PJ et al. Effects of Testosterone Treatment in Older Men. N Engl J Med. 2016;374(7):611–624.
- Fink HA et al. Association of testosterone and estradiol deficiency with osteoporosis and bone loss in older men. J Clin Endocrinol Metab. 2006;91(10):3908–3915.
- Tracz MJ et al. Testosterone use and its effects on bone health: A systematic review and meta-analysis. J Clin Endocrinol Metab. 2006;91(6):2011–2016.
