Of all cancers, only prostate cancer is the most special, because a part of prostate cancer may remain unchanged for a long time, coexisting peacefully with the organism without posing any health risk. Medically, this kind of prostate cancer is called latent prostate cancer (lazy cancer). 1. Prostate cancer is a cancerous tumor that occurs in the chestnut-shaped tissue of the prostate gland in men. Latent prostate cancer may not produce any changes for a long time and does not pose any health risk. Even in advanced stages of prostate cancer, the five-year survival rate can be as high as 90% or more. 2. It takes about ten years for prostate cancer to develop from the first cancerous cells to the point where it can be diagnosed. It takes about a decade or more from the early diagnosis of prostate cancer to the development of potentially life-threatening symptoms. Some patients can survive with the tumor without significant impact on life expectancy. 3. For older, low-risk patients, survival with tumor may be an option with regular surveillance. Local treatment is based on radical prostatectomy and radical radiotherapy. If there is any discomfort, please consult the doctor in time, and the doctor will give reasonable treatment suggestions based on the patient’s life expectancy, the size of the tumor, the degree of differentiation of the cancer cells and other factors.