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The present study investigated the clinical significance afforded by locoregional surgery in improving the prognosis of primary metastatic testicular cancer (pMTC). The population-based Surveillance, Epidemiology and End Results database was used as the primary source of data in the present study. Stratification analysis was employed to identify the effects of testicular surgery on testicular cancer-specific survival and overall survival. Propensity score matching and Cox regression models were then employed to find and evaluate the extent of improvements to the survival of patients with pMTC by testicular surgery. The median testicular cancer-specific survival and overall survival in the surgery group were 10% higher than those in the group without surgery. Testicular surgery was demonstrated to have provided a survival advantage for patients with a single metastasis in the bone or brain, but not in the liver or lung. When combined with radiotherapy and chemotherapy, surgery significantly improved the survival of patients. However, according to the surgical outcome based on molecular subtypes, when deciding on the surgery for patients with metastatic testicular cancer, only human chorionic gonadotropin and lactate dehydrogenase, and not α-fetoprotein should be considered. Surgery serves a significant role in the management of non-seminoma, whereas its role in the management of seminoma is far more limited. The effects of locoregional surgery have been neglected when treating patients with pMTC. Surgical procedures should be considered more seriously when planning combination treatments for patients with pMTC with a single bone or brain metastasis.

Locoregional surgical treatment improves the prognosis in patients with primary metastatic testicular cancer with a single bone or brain metastasis