psa is serum prostate-specific antigen, and its normal value is within the range of 0 to 4. Its related parameters do not directly diagnose prostate cancer. psa value is greater than 10, and the ratio of free psa and total psa is less than 0.16, only the possibility of prostate cancer can be considered, but the diagnosis needs to be confirmed by prostate puncture biopsy; psa value is between 4 and 10, and the ratio is abnormal, also recommended to carry out puncture biopsy.
In addition to the relationship between psa value and prostate cancer, it is also related to urinary tract infection, urinary retention, stone irritation, rectal examination, etc. Moreover, the psa value is also related to the patient’s age and the size of the prostate.
High psa is not necessarily prostate cancer, but may also be prostate hyperplasia, prostatitis and other lesions. psa, as a prostate-specific marker, is only a reference indicator, different hospitals have different testing methods with different reference values, and should be rechecked at regular intervals, and if the value is abnormal, you should seek medical attention as soon as possible for further improvement of the examination, so as to avoid adverse consequences.