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Background: The benefit of perioperative oncological treatment in men with penile cancer is uncertain. In 2015, treatment recommendations were centralised in Sweden and treatment guidelines were updated., Objective: To evaluate if the use of oncological treatment in men with penile cancer increased after the introduction of centralised recommendations, and whether such therapy is associated with better survival., Design Setting and Participants: This was a retrospective cohort study including a total of 426 men diagnosed with penile cancer with lymph node or distant metastases in Sweden during 2000-2018., Outcome Measurements and Statistical Analysis: We first assessed the change in the proportion of patients with an indication for perioperative oncological treatment who actually received such treatment. Second, we used Cox regression to calculate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for disease-specific mortality associated with perioperative treatment. Comparisons were made for both all men without perioperative treatment and for those who did not receive treatment but who lacked apparent contraindications for treatment., Results and Limitations: The use of perioperative oncological treatment increased from 2000 to 2018, from 32% of patients with an indication for treatment during the first 4 yr to 63% during the last 4 yr. In comparison to patients potentially eligible for oncological treatment who did not receive it, those who were treated had a 37% lower risk of disease-specific death (HR 0.63, 95% CI 0.40-0.98). Stage migration because of improvements in diagnostic tools over time may have inflated the more recent survival estimates. An influence of residual confounding due to comorbidity and other potential confounders cannot be excluded., Conclusions: The use of perioperative oncological treatment increased after the centralisation of penile cancer care in Sweden. Although the observational study design precludes causal inference, the findings suggest that perioperative treatment in patients with penile cancer eligible for treatment may be associated with better survival., Patient Summary: In this study, we looked at the use of chemotherapy and radiotherapy for men with penile cancer and lymph node metastases in Sweden during 2000-2018. We found an increase in the use of cancer therapy and an increase in survival for patients who received such therapy., (© 2023 The Author(s).)