Metastatic prostate cancer is an uncurable disease. Treatment is only palliative. Median survival of patients is 3 years. Prostate cancer is an hormonodependent cancer, androgen blockade is the most active treatment. However hormone resistance occurs after a median interval of 2 years. The major symptom is pain, others are urinary obstruction, neurological complications of bone metastases and hematological disorders. Androgen deprivation is the first-line treatment, impotency and osteoporosis being the main side effects. Other treatments are radiotherapy, radiopharmaceutics and chemotherapy. The most important treatment issue is quality of life.