Prostate cancer occurs due to the uncontrollable growth of the prostate cells. Prostate glands in men enlarge as they grow older. This is normally because of the tumors that are benign and malignant.

The symptoms of these tumors are: rushing to the toilet to urinate, difficulty in urinating, pain while passing urine and blood in the semen or urine.

The common prostate cancer symptoms include:
1. A need to urinate often, especially during nights.
2. Difficult to urinate or hold it back as the urethra passes through the prostate. This may also be caused due to the prostatic hyperplasia. As the tumor grows it presses on the urethra which makes the flow of urine difficult.
3. Painful ejaculation and difficulty in erection which is caused due to the growth of the prostate gland is also a prostate cancer symptom. There might be a sudden onset of impotence. Less semen is also seen during ejaculation.
4. Burning urination and chronic pain
5. Frequent pain in the lower back, hips, abdomen or thighs.
6. Weak and irregular stream of urine and dribbling after the urination is over. This is normally caused due to the growth of the prostate gland.
7. Blood or sometimes pus in the urine is also seen.
8. Interrupted flow of urine.

If the prostate cancer affects the lymph nodes, prostate cancer symptoms that might be seen are:
Swelling in the leg, feeling discomfort in the pelvic area causing persistent and dull ache, urine flow gets obstructed which might affect one or both the kidneys causing failure of the kidneys.

In advanced stages, the prostate cancer if metastasizes to the pelvic bones or the pelvic bones. The prostate cancer symptoms found are:
a. Constant pain in the bone and ribs.
b. Spine might get compressed
c. Fractures in the bones.
d. Fatigue and anemia.
e. Loss of appetite, weight and vomiting along with extreme tiredness.
f. Weakness in legs and hence unable to move them. The cancer cells might interrupt the process wherein new bones are made and the old bones are destroyed.

As the tumor grows and advances to the other areas the symptoms of prostate cancer generally are:
1. The tumor might block the flow of urine leading to the enlarged urinary bladder which is quite painful.
2. If the cancer spreads to the liver it might cause severe pain in the abdomen and cause jaundice. If the cancer spreads to the lungs it might cause chest pain and coughing.
3. If the cancer spreads to the bowels, it might cause difficulty in emptying the bowels.
4. Swelling might also occur in the legs and feet which might make it difficult and uncomfortable to walk around and get up.