The safety claim was advanced by Steinach and by popularizers including Norman Haire, whose 1924 book described the operation as brief and minimally invasive. The claim that the procedure was safe in the narrow sense (low acute surgical risk, no life-threatening complications attributable to the procedure itself) is plausible given the simplicity of vasoligation; no documented fatality specifically from the procedure has been identified in the secondary literature reviewed. However, the claim was never evaluated against a systematic adverse-event registry or follow-up study. The broader claim, implicit in marketing, that there were no long-term costs from the procedure, is not supported by controlled data. The safety claim is classified as unreplicated rather than refuted because its narrow assertion (low acute risk) is not falsified by available evidence, while the broader implicit claim (no adverse long-term effects) was never tested with adequate follow-up methodology.