In most cases, the cancer develops without manifesting any symptoms, which is a particular feature. Furthermore, the most common symptoms are not specific to it. Symptoms include difficulty in urinating, painful urination, the urgent need to urinate, the need to urinate often, pain or discomfort in the pelvic region and, in some cases, erectile dysfunction. The type and intensity of issues, however, depend on the stage of the disease. In cases where the tumour has metastasized, i.e. has expanded outside the prostate and affected other organs, completely different symptoms unrelated to the urinary tract, such as bone pains, fatigue and weariness, may exist.