Facts about prostate cancer - You want to read this.
Prostate cancer, cancer biopsy, cancer stages, and PSA levels. PSA, or protein specific antigen, is a protein normally produced by the prostate. It is part of the normal production of semen by men's reproductive system. It is also normally found in the blood, although in very small amounts. It is measured in ng/ml (nanograms per milliliter), a nanogram being one-billionth of a gram. The amount of PSA in the blood is highly dependent on two main factors, one of them being age, the other the healthy state of the prostate gland. The prostate gland is about the size of a walnut, or 30 g (~ 1 ounce). Prostates may become enlarged, the risk factors being age, family history, diabetes, and heart disease. In general, men under the age of 40 will not have an enlarged prostate, but men over the age of 80 have a 90% chance of having it. As you get older, the risk increases. Enlarged prostates can be problematic in that they may restrict the flow of urine a...