Prostate-specific antigen (PSA), is a protein produced by both cancerous and non-cancerous prostate tissue. The primary function of PSA is to liquefy the semen that carries sperm during ejaculation [1].

See also: What Causes Inflammation In The Prostate Gland?


What is the PSA test?


Although PSA is primarily intended for semen, small amounts can move into the bloodstream where it can be measured with a simple blood test known as the PSA test.

The PSA test can play an important role in the path to diagnosing prostate cancer in men who are experiencing symptoms. The test is also sometimes used to estimate the severity of other benign conditions such as an enlarged prostate [2].

Besides your PSA levels, other factors will be taken into account when evaluating test results, these include [3]:

  • Age
  • Size of the prostate gland
  • How quickly your PSA levels are changing
  • Whether you're taking medications that affect PSA levels
  • Other conditions

See also: What impacts a man's PSA levels?


If you have any concerns about prostate cancer, it’s important to speak with your doctor.

A PSA test is one of the most reliable ways to measure the levels of prostate-specific antigen in your blood, this test can be done with your doctor or from home with an at-home lab test.

LetsGetChecked’s at-home PSA Test can help detect signs of prostate cancer in the blood. Raised levels may indicate prostate cancer though they may also indicate non-cancerous enlargement or inflammation of the prostate. Your online results will be available within 5 days and our dedicated medical team will be with you every step of the way to answer any questions you may have.



References

  1. Harvard Medical School. PSA: Prostate-Specific Antigen, Persisting Scientific Ambiguities. Online: Health.harvard.edu
  2. Harvard Medical School. PSA: Prostate-Specific Antigen, Persisting Scientific Ambiguities. Online: Health.harvard.edu
  3. Mayo Clinic. Prostate cancer screening: Should you get a PSA test? Online: Mayoclinic.org, 2019