PSA 6.1ng/ml at 70 years old cannot be based on PSA alone to determine whether it is serious or not, it needs to be combined with other checkups and the patient’s condition to make a comprehensive judgment. PSA is a prostate-specific antigen, commonly used in prostate cancer screening, PSA is highly specific for prostate cancer, the total positive rate can reach 82% to 97%, which means that patients with prostate cancer generally have elevated serum PSA. However, it does not mean that elevated PSA is prostate cancer, it depends on the degree of elevation. Normal serum PSA value is not more than 4.0ng/ml, when the PSA test value is between 4-10ng/ml, this is mostly benign prostate disease, such as prostate hyperplasia or prostatitis, but also does not exclude the possibility of prostate tumor. If the test value is 6.1ng/ml in a 70-year-old man, prostate hyperplasia should be considered first, which should be diagnosed together with the patient’s clinical manifestations and other examinations, such as prostate puncture and ultrasound. If the PSA test value is more than 10ng/ml, the chance of prostate cancer is very high, and as the value rises, the chance of prostate cancer will be more and more, you can do prostate puncture to determine the nature of the lesion of the prostate gland through the pathology, and if it is prostate cancer, you can have surgery or chemotherapy and endocrine therapy. PSA value is 6.1ng/ml, it is recommended to go to the hospital in time.