What is signs of Prostate Cancer?

Answer 1

frequent urination

Answer 2

Frequent or difficult urination, a feeling of incomplete urination. Also, the appearance of a lump or swelling, or changes in the skin, in the prostate area. There may also be a discharge.
Many men are "allergic to doctors", however, checking the prostate should be part of a man's regular health exams. Men can check themselves periodically (as women do their breasts) and also see the dr annually for a wellman's exam.
Prostate cancer is very common in men over a certain age, and it is treatable if caught early. Unfortunately the treatment (hormones, surgery) may make a man feel that he is compromising his manhood; still, life is priceless!

Answer 3

Prostate cancer is usually adenocarcinoma. Symptoms are rare until urethral obstruction occurs. Diagnosis is suggested by digital rectal examination or prostate-specific antigen measurement and confirmed by biopsy. Prognosis for most patients with prostate cancer, especially when it is localized or regional, is very good; more men die with prostate cancer than of it. Treatment is with prostatectomy, radiation therapy, or, for some elderly patients, watchful waiting.(Merck)
Early prostate cancer usually causes no symptoms. Often it is diagnosed during the workup for an elevated PSA noticed during a routine checkup. Sometimes, however, prostate cancer does cause symptoms, often similar to those of diseases such as benign prostatic hypertrophy. These include frequent urination, increased urination at night, difficulty starting and maintaining a steady stream of urine, blood in the urine, and painful urination. Prostate cancer may also cause problems with sexual function, such as difficulty achieving erection or painful ejaculation.
Advanced prostate cancer may cause additional symptoms as the disease spreads to other parts of the body. The most common symptom is bone pain, often in the vertebrae (bones of the spine), pelvis or ribs, from cancer which has spread to these bones. Prostate cancer in the spine can also compress the spinal cord, causing leg weakness and urinary and fecal incontinence.(Wikipedia)
Please see the web pages for more details on Prostate cancer and Prostate specific antigen.