What are the symtoms of prostate cancer?

Mostly none. : In fact, a good number of men who die of "old age" or other reasons are found to have prostate cancer in their autopsies and they never knew. If it grows big enough, men will have the usual urinary symptoms of enlarged prostate: difficulty starting, getting up at nite to pee, etc. If it spreads (and it prefers the bone) pain may occur.

No symptoms: Usually, prostate cancer is detected before symptoms develop. This is done with a blood test (psa). If prostate cancer is undetected, it can grow to be large and interfere with prostate/urethra/bladder function. It can cause decreased urinary stream, discomfort or pain, blood in urine.

Non-specific: Autopsies of elderly men who die of multiple causes often discloses an occult prostate cancer, meaning that some cancers never cause any symptoms at all. Others will cause the same symptoms of benign prostate enlargement (frequent urination, getting up at nite to pee, hesitancy, etc.). Once the cancer spreads to the bone, pain can develop.

Asymptomatic: Prostate cancer at its early stages is generally without symptoms or warning signs. As prostate cancer grows, it may cause urinary obstructive symptoms. In advanced stages with bone metastasis it may present with bone pain.