These and other symptoms may be caused by prostate cancer. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:

• Weak or interrupted flow of urine
• Frequent urination (especially at night)
• Trouble urinating
• Pain or burning during urination
• Blood in the urine or semen
• A pain in the back, hips, or pelvis that doesn't go away
• Painful ejaculation.