Due to high mortality rates of Fournier Gangrene (FG), this type of gangrene appears to be a potentially fatal disease and has been included as emergency cases in urology. Recent studies have used several methods to estimate the FG patients' prognosis, including the Fournier Gangrene Severity Index (FGSI) and Platelet-Lymphocyte Ratio (PLR) methods. A descriptive study with a cross-sectional approach using secondary data from the medical records (2017-2021 data) of the Department of Surgery, Urology Division, Haji Adam Malik General Hospital Medan, was carried out (approved by the Research Ethics LP Committee). A higher FGSI score (>5.5) was determined, implying to a risk of a Fournier gangrene condition with a sensitivity and specificity of 60% and 60%, respectively, and a positive predictive value of 42.85%. Higher PLR results (> 228.04) which was found from the records are potentially to be used as a prognostic factor to determine the outcome of a Fournier gangrene condition with a pretty good sensitivity and specificity of 90.00% and 90.00%, respectively as well as a predictive value positive of 81.81%. FGSI and PLR can be used as prognostic factors for cases of Fournier Gangrene.