Prostate Cancer: A Patient’s Journey Download English PDF, 962KB, PDFProstate cancer is a disease in which malignant (cancer) cells form in the tissues of the prostate - the gland that contributes fluid to semen. Although experts do not know exactly what causes prostate cancer, certain risk factors such as being over the age of 65, and family history of prostate cancer can put an individual at a greater risk of developing this disease. [Please download the PDF file if you are unable to view the image below.]