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Meta-analysis shows testosterone replacement therapy increases clinical fracture risk in hypogonadal men compared to placeboTestosterone therapy raises fracture risk in hypogonadal men

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Key Takeaway
Testosterone replacement therapy is associated with a significantly increased risk of clinical fractures in hypogonadal men based on this meta-analysis.

This systematic review and meta-analysis evaluated the impact of testosterone replacement therapy on fracture risk among men with hypogonadism. The analysis pooled data from randomized controlled trials involving a total of 2,711 participants to assess safety and efficacy regarding bone health outcomes.

The primary analysis revealed a concerning increase in the risk of clinical fractures for patients receiving testosterone compared to those on placebo. The relative risk was 1.55, with a 95% confidence interval ranging from 1.21 to 1.97, indicating a statistically significant elevation in fracture incidence. This finding suggests a potential safety concern that clinicians must weigh against the benefits of treatment.

However, when examining specific fracture types, the results were more nuanced. There was no significant difference observed for major osteoporotic fractures, vertebral fractures, or hip fractures. The confidence intervals for these subtypes were wide, often crossing the null value, which implies uncertainty in the estimates for these specific outcomes. Despite the lack of significance in these subgroups, the overall clinical fracture signal remains the most critical takeaway.

Men with low testosterone often take replacement therapy to feel better. But a new analysis of many trials asks a hard question: does this treatment make bones weaker? The answer is yes for overall fractures. When researchers looked at all the data together, men on testosterone replacement therapy faced a significantly higher risk of breaking a bone than those on a placebo. The risk was 55 percent higher in the treatment group. This finding comes from a massive review that combined results from 2,711 men across multiple studies. It is important to note that the data did not show a difference for major osteoporotic fractures or specific types like hip or spine breaks. The wide range of numbers suggests the results for these specific breaks were not clear. While the overall fracture risk is a real concern, the picture for specific bone breaks remains uncertain. This review helps doctors weigh the benefits of feeling better against the potential cost of more frequent breaks.

What this means for you:
Men with low testosterone on replacement therapy had a 55 percent higher risk of clinical fractures.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedJun 2026
View Original Abstract ↓
OBJECTIVE: Testosterone replacement therapy is the treatment of choice in men with hypogonadism. Although its beneficial effect on bone mineral density is well established, the evidence regarding its impact on fracture risk remains inconclusive. The purpose of this study was to systematically review and meta-analyze the highest-quality available evidence regarding the effect of TRT on fracture risk in hypogonadal men. STUDY DESIGN: A systematic literature search was conducted in PubMed, Scopus and Cochrane databases from inception through 30 September 2025. Only randomized controlled trials were eligible for inclusion. Outcomes were summarized as relative risk (RR), with a 95% confidence interval (CI). The I index was used in order to quantify heterogeneity. RESULTS: The initial search yielded 1145 results after removal of duplicates; seven papers underwent full-text assessment. Finally, two studies were included in the qualitative and quantitative analysis (n = 2711). TRT was associated with increased risk of clinical fractures compared with placebo (RR 1.55, 95% CI 1.21-1.97, p < 0.0001, I 0%). However, no difference between groups was observed when the analysis was restricted to major osteoporotic fractures (hip, spine, wrist, and arm) (RR 0.62, 95% CI 0.12-3.35, p = 0.58, I 63%). This was also the case for vertebral (RR 0.87, 95% CI 0.29-2.58, p = 0.80, I 9%) and hip fractures (RR 1.02, 95% CI 0.33-3.09, p = 0.98, I 0%), when analyzed separately. CONCLUSION: TRT is associated with an increased incidence of predominantly non-major fractures, while the risk of major osteoporotic fractures, including hip and vertebral fractures, was not increased.
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