Meanwhile, the Mex3a promoter methylation level was significantly higher in patients with ascites (median: 0.438% and interquartile range: 0.178%–0.678%) than in those without ascites (median: 0.252%, interquartile range: 0.086%–0.502%, and p = 0.008). The gene discussed is MEX3A; the disease is Ascites.