Bladder cancer (BC) patients had significantly higher ratios of both TREM-1%/TREM-2% (p < 0.001) and mean fluorescence intensity (MFI) TREM-1 MFI/TREM-2 MFI (p = 0.004) expressions on CD14+ monocytes compared to healthy subjects, TREM-2 MFI being significantly lower (p = 0.025). This evidence concerns the gene CD14 and urinary bladder carcinoma.