Get a complete medical checkup on behalf of your loved ones. A complete medical checkup is very useful for the early detection and prevention of various diseases by making maximum use of modern medicine—a health check for your bright future. The PSA test is very effective as the first criteria to detect prostate cancer. Because only a blood test is required, the PSA is also used for mass screening of prostate cancer. Prostate cancer develops in the prostate gland, which is an organ that only men have. It is becoming one of the leading causes of cancer death in Japan. If patients with prostate cancer receive the appropriate treatment through early detection, they can lead a life of about the same length as if they did not have prostate cancer. The PSA test, which is conducted widely for early detection of prostate cancer, is explained here.