Objective To analyze the clinical features of benign prostate hyperplasia(BPH) complicated by chronic prostatitis(CP).Methods A total of 92 BPH patients were divided into simple group(24 cases) and complicated group(68 cases),depending on whether the complicated chronic prostatitis existed.Differences of age,size of prostate,serum prostate specific antigen(PSA),prostate specific antigen density(PSAD),International Prostate Symptom Score(IPSS),and Quality of Life Sale(QOLS) were analyzed between simple BPH cases and BPH cases complicated with prostatitis.Results Significant differences existed in age,prostate size,PSA levels PSAD levels,IPSS,and QOL between simple group and complicated group(P0.05).Conclusion BPH patients tend to develop complicated CP,which might worsen the lower urinary tract conditions.Hyperplastic prostate,on the other hand,is more susceptible to infections.