Early detection of prostate cancer PSA

Prostate cancer is a kind of occult disease, Without knowing it, the slow growth of a few early symptoms, and once symptoms are often confused with benign prostatic hyperplasia, alive frequency, nocturia increased urination slow, or even urinary retention. But with benign prostatic hyperplasia significantly different is that prostate cancer in the urinary tract obstruction can be a transfer of the early symptoms, 1 / 3 of patients transferred to the liver, lung, brain and other organs, bone marrow and lymph system violations. Some prostate cancer directly transfer site for a clinical symptoms. 50 Men over the age of about 30 percent of the people have latent prostate cancer, about 2 / 3 of patients were diagnosed with prostate cancer, has been transferred. Some people say that the prostate cancer is a good camouflage the ferocious killer, inadvertently, mercilessly swallowed. For early diagnosis of prostate cancer, a urologist at home and abroad doctors have done a lot of clinical and scientific research. The prostate specific antigen (PsA) has been widely used in clinical, as early diagnosis and prostate cancer screening one of the important means. PSA is prostate epithelial cells from the cytoplasm of an enzyme, normal blood levels rarely. Once suffering from prostate cancer, PsA value high. This is now recognized early diagnosis of prostate cancer one of the effective methods. In addition, the PSA determination, but also sensitive to determine whether certain organizations from the prostate, its accuracy rate up to 1 oo%. Some people use of PSA found a tumor in patients with bronchial cancer from benign prostatic. Therefore, PsA, as a shrewd detective, tight capture holed elsewhere in the prostate. Usually with the digital rectal examination, the rectal ultrasound examination, the results of PsA is an objective, quantitative, no diurnal variation, are not subject to inspection technology impacts, as well as easier methods for the determination of the advantages of patients, and the lowest rate of misdiagnosis, the highest sensitivity . Doctors Association and the American Urological Association tumor recommend 50-year-old has more than men do an annual digital rectal examination and serum PSA determination, with a view to early detection of prostate cancer. Of course, PsA is not always infinite resourcefulness of the sometimes escape PsA prostate cancer will review, but at least PsA value increased, mean that the existence of a prostate disease should pay close attention to. It is now also came up with more advanced detection methods. He believed that with the continuous development of science and technology, prostate cancer is no longer Utah Instead the mysterious killer, there will be more patients get early diagnosis and treatment.