Six articles provided a positivity rate of CD147 expression in prostate cancer and normal prostate tissues, 8 articles reported on CD147 expression in prostate cancer and benign prostatic hyperplasia, 12 articles involved Gleason score, 6 articles involved TNM stage, 5 articles involved differentiation, 6 articles involved lymph node metastasis, and 2 articles involved distant metastasis. This evidence concerns the gene BSG and benign prostatic hyperplasia.