A prostate psa value greater than 4ng/ml is considered a possibility for prostate cancer, but not necessarily prostate cancer. Prostate psa refers to prostate-specific antigen, which exists in human prostate fluid and semen. Generally, the value of prostate psa in human body is low, and the normal index is 0~4ng/ml, so when the value of prostate psa is greater than 4ng/ml, it is considered that there is a possibility of prostate cancer. If the PSA is between 4-10ng/mL, it should be combined with other tests to further confirm the diagnosis. If the PSA is more than 10ng/mL, it is recommended that the patient undergoes a prostate puncture biopsy, and the possibility of diagnosing prostate cancer will be further elevated. If the patient’s prostate gland has any abnormal discomfort, he or she should consult a doctor in time and follow the doctor’s instructions for examination. Of course, due to the influence of prostate psa value of more factors, such as: prostatitis or rectal fingerprinting, urethra examination of the way, can lead to higher prostate psa value, so if it is the first time found that the prostate psa value is too high, do not rule out the occasional situation, the patient can be 1 week later to continue to review, if it is still high, continue to check whether the prostate cancer.