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The PSA test is a blood test used primarily to screen for prostate cancer. The test measures the amount of prostate-specific antigen (PSA) in your blood. PSA is a protein produced by both cancerous and noncancerous tissue in the prostate, a small gland that sits below the bladder in men

More about Prostate Gland & Prostate Specific Antigen Test

Other names: PSA test

Prostate Specific Antigen abbreviated as PSA is protein produced by cells of the prostate gland. PSA test measures the level of PSA in a man’s blood.

The prostate is a small gland that is part of a man’s reproductive system. It is located below the urinary bladder. The prostate secretes fluid that nourishes and protects sperm.

Different conditions associated with Prostate are:

  • Prostatitis: Inflammation of the prostate, sometimes caused by infection. It is typically treated with antibiotics.
  • Enlarged prostate: Called benign prostatic hypertrophy or BPH, prostate growth affects virtually all men over 50. Symptoms of difficult urination tend to increase with age. Medicines or surgery can treat BPH.

Prostate cancer: It’s the most common form of cancer in men (besides skin cancer). Surgery, radiation, hormone therapy and chemotherapy can be used to treat prostate cancer.

Why Prostate Specific Antigen (PSA) is tested?

Blood level of PSA is often elevated in men with prostate cancer. In addition to prostate cancer, a number of benign (not cancerous) conditions can cause a man’s PSA level to rise. The most frequent benign prostate conditions that cause an elevation in PSA level are prostatitis (inflammation of the prostate) and benign prostatic hyperplasia (BPH) (enlargement of the prostate). The results are usually reported as nanograms of PSA per milliliter (ng/mL) of blood.

Who should take Prostate Specific Antigen (PSA) Test?

You may get a PSA test if you are athigh risk group of for prostate cancer such as:

  • A father or brother with prostate cancer
  • Your age. Prostate cancer is more common in men over the age of 50.

You may also get a PSA test if:

  • You have symptoms such as painful or frequent urination, and pelvic and/or back pain.
  • To monitor ongoing treatment for prostate cancer.
Reference Values and Requirements for Prostate Specific Antigen (PSA) Test

Reference values for Prostate Specific Antigen


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