Prostatic hyperplasia is a benign proliferative lesion, which mainly manifests as frequent urination, incomplete urination, difficulty in urination, increased nocturia, etc., and how it is related to the development of prostate cancer is currently divided in the medical field. Those scholars who believe that there is a relationship between the two found that the proliferation of prostate hyperplasia may form nodules, nodules continue to proliferate, and the internal tissue cells may grow rapidly, which can not rule out the possibility of cancer, because the nature of cancer is the unrestricted growth of tissue cells. Scholars who think that there is no relationship between the two believe that prostate hyperplasia and prostate cancer have different sites of onset, prostate hyperplasia occurs mostly in the lateral and middle lobes, and usually does not occur in the posterior lobe, but prostate cancer occurs in the posterior lobe. The lateral and posterior lobes of the prostate are different from each other in terms of embryogenesis, anatomical location and even physiopathology, so it is difficult to find a causal relationship between the two diseases. In conclusion, although it is impossible to determine the relationship between the two, but the incidence of prostate hyperplasia is much higher than prostate cancer, coupled with the rapid development of medical means, if prostate hyperplasia occurs regular review of the prostate specific antigen (PSA) indicators will know whether there is the occurrence of prostate cancer.