If the prostate cancer is in early stage, the postoperative PSA value is <0.2ng/ml; if it is in advanced stage, the postoperative PSA value is higher and may be >2ng/ml. Early detection of prostate cancer patients with early surgical treatment, the postoperative effect is better, postoperative review PSA value <0.2ng/ml usually indicates that the tumor has not recurred or metastasized. However, if patients with advanced stage have local invasion or distant metastasis, and the surgery cannot completely remove the tumor, the PSA value will be higher after surgery. Overall, postoperative PSA value depends on tumor stage, grading, whether the surgery is complete and other factors. Postoperative PSA value should be rechecked on time, if it is significantly elevated, further treatment is needed.