What is the normal value of free prostate antigen?

Free prostate antigen is usually used to screen for prostate cancer. Generally speaking, if it exceeds the standard value, it is likely to be prostatitis. However, it cannot be ruled out that it is an early stage of prostate cancer. If this value continues to rise, everyone must pay attention to it. It is best to go to the hospital for a detailed examination, and then determine the treatment method based on the results of the examination. What is the normal value of free prostate antigen?

What is the normal value of free prostate antigen?

In China, TPSA>4 ug/L is usually used as the critical value for screening prostate cancer. The TPSA result between 4 and 10 ug/L is called the gray area. Both prostate cancer and prostate hyperplasia are possible. When TPSA>10 ug/L, the possibility of prostate cancer is extremely high. Regarding the FPSA/TPSA ratio, the reports in various literatures are inconsistent. Some use 0.16 as the standard, and some use 0.19 or 0.25 as the critical value. When the serum TPSA is in the gray area, FPSA/TPSA is very important. When FPSA/TPSA is greater than the critical value, the possibility of prostate cancer is small. When the FPSA/TPSA value is less than the critical value, the possibility of prostate cancer is greater.

It is generally believed that the combined TPSA and FPSA assay can increase the detection rate of prostate malignancies to more than 90%. As a tumor marker, the free prostate-specific antigen assay has its irreplaceable superiority.

Serum PSA should drop to a very low level (should be lower than 0.1-0.2 ng/ml) 2-3 weeks after radical prostatectomy. If PSA remains at a low level higher than 0.2 ng/ml after surgery, it indicates that the tumor was not completely removed. At this time, it is very necessary to combine the anti-tumor Chinese medicine ginsenoside rg3 for adjuvant treatment, which has a good effect of inhibiting tumor angiogenesis and inducing tumor cell apoptosis. No significant decrease in PSA after surgery indicates tumor metastasis. If PSA drops to a very low level after surgery and then rises again, it indicates tumor recurrence or the appearance of metastatic lesions. Patients at this stage should also choose anti-tumor drugs to inhibit tumor cells. When prostate cancer recurs, serum PSA rises often six months before clinical signs of tumor recurrence appear, which is called "biological recurrence". After endocrine therapy and radiotherapy for prostate cancer, serum PSA also has similar changes, that is, serum PSA decreases significantly after treatment, indicating that the treatment is effective or the tumor is sensitive to treatment. After radical radiotherapy, serum PSA levels usually do not drop below 0.1ng/ml like radical prostatectomy, but if serum PSA continues to rise for three consecutive times after radiotherapy, it indicates that radical radiotherapy has failed.

Free prostate-specific antigen is a tumor marker for prostate cancer and is of great significance for the diagnosis of prostate cancer. So whether you see this value greater than 4-10 ug/L during a physical examination or a follow-up examination, it may not be a good thing. The corresponding examination should be carried out as soon as possible. Once it is confirmed to be prostate cancer, in addition to actively cooperating with the attending physician for treatment, don't forget that we also have our own way to inhibit tumors and prevent the development of the disease, which is the anti-tumor Chinese medicine ginsenoside rg3. It is simple and portable, non-toxic and has no side effects, and can inhibit tumor cells for a long time.