The management of renal injuries in hemodynamically stable adult patients is moving toward more conservative methods, even in cases of severe grade and/or penetrating trauma. The objective of this study was to analyze the patterns of injury, management, and complications in renal trauma patients at a Polish trauma center. Patients diagnosed with renal trauma at the trauma center between January 2019 and December 2023 were identified based on the ICD-10 codes. The information was gathered from digitalized medical records, while imaging data were classified by Radiologists. During a period of 4 years, a total of 81 patients with renal trauma were admitted to the trauma center. 76% of these patients were males, with a mean age of 44.61 ± 16.8 years. The most common concomitant conditions, both among men and women, included retroperitoneal hematoma, rib fractures, as well as chest and lung injuries. Surgical intervention within 8 h of admission was mainly performed on patients with grade IV and V kidney damage, which included a total of 22 people. In deferred treatment, 31 patients underwent surgical intervention. Hemodynamically stable patients, even with penetrating and/or high-grade blunt trauma, were mostly managed non-operatively, with a low rate of complications.