Normal PSA cannot completely rule out prostate cancer.
PSA refers to serum prostate-specific antigen, which is often used in clinical screening of the prostate gland, and the normal value range is less than 4.0 ng/ml. If the PSA is elevated, it is likely to be prostate cancer or other prostate lesions or injuries, but a normal PSA can’t completely exclude prostate cancer, just that the probability of having prostate cancer is relatively low.
Clinically, there are many prostate cancer patients who have normal PSA test results during tumor marker examination, which can not be used as the only criterion for determining prostate cancer, and often needs to be combined with clinical symptoms and other inspection indexes (ultrasound, MRI, pathological biopsy, rectal fingerprinting, etc.).
It is recommended that if there are obvious discomfort symptoms, you should cooperate with your doctor to do further examination in order to make a clear diagnosis.