The 82-year-old Mr. Bai is a retired cadre, every year on time to participate in the unit organization of physical examination, each time the report: mild hypertension high blood pressure, has not found major diseases, is considered a “healthy elderly”. In the past five years, he intermittently appear urinary dyspareunia, he thinks it is senile prostatic hyperplasia, oral some proprietary Chinese medicine, the effect is not too satisfactory. The actual fact is that you can find a lot of people who are not able to get a good deal on this kind of things. A month or so later, he began to experience weakness in both lower limbs and pain in the lumbosacral area, and only after going to the hospital did he discover that he had bone metastasis from prostate cancer – a malignant tumor in its advanced stage. The incidence of prostate cancer is a common malignant tumor among elderly men, ranking first in the United States and increasing rapidly in China in recent years. Prostate cancer is a slow developing malignant tumor, and its mechanism of occurrence and progression is not fully understood. According to statistical analysis, it is related to genetics, race, dietary structure and living habits. Since there are no typical symptoms in early stage and it occurs mostly in older men, it is easy to be confused with prostate hyperplasia and inflammation. If we do not screen the rectal examination, serum PSA and transrectal ultrasound and other specialized items, it is easy to miss the diagnosis, so many prostate cancer patients are not detected early, and some of them even die of bone, lung, liver and other metastases and tumor malignancy without clear reasons. This is the invisible killer of middle-aged men, as urological oncologists call it. Most of the early stage prostate cancer can be cured, and most of the early stage patients can survive for a long time after comprehensive treatment such as “radical prostatectomy”, and some of them still maintain their sexual function and have satisfactory quality of life. However, the majority of prostate cancer patients diagnosed in China are in the middle and late stages. Why is there no early detection? The reason is that people have not yet fully understood and paid attention to prostate cancer, and many medical workers in primary hospitals have little knowledge about it, and the routine physical examination of units does not include simple screening items such as serum PSA, resulting in most prostate cancer patients missing the best stage of treatment, which, on the one hand, affects the average life expectancy of men in China, and patients themselves suffer from physical and mental pain, and families are burdened with the heavy economic burden of treating advanced tumors. On the other hand, it affects the reasonable allocation of social medical resources and the satisfaction index of people’s life; therefore, urological oncologists call for the inclusion of specialized screening for prostate cancer into the routine medical checkup for middle-aged and elderly men.