PSA, also known as Prostate-specific antigen, is a protein produced by cells in the prostate gland; a small gland that sits below the bladder in men.

A PSA test is used to measure the levels of PSA in a man’s blood. When high levels are detected, it may indicate the presence of prostate cancer though there are many other conditions that increase PSA levels, including [1]:

  • Enlarged prostate
  • Older age
  • Urinary Tract Infection (UTI)
  • Prostatitis

See also: Do Elevated PSA Levels Mean Prostate Cancer?

What is a high PSA level?

There isn’t a particular PSA level that’s deemed ‘normal’ as levels can vary over time. With that said, most medical experts in the past note that PSA levels of 4.0 ng/mL and lower are normal while levels above 4.0 ng/mL may require a prostate biopsy to determine the underlying cause and confirm whether or not prostate cancer is present [2].

It’s important to remember that prostate cancer isn’t always the underlying reason for high PSA levels, as previously mentioned, there are many conditions and factors that can cause your levels to fluctuate.

See also: What Affects 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 your PSA levels. You can take this test by visiting 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.

You should consider taking the test if:

  • You are over the age of 50
  • You have a strong family history of prostate cancer
  • You are overweight or obese

See also: What Causes Inflammation In The Prostate Gland?


  1. National Cancer Institute. Prostate-Specific Antigen (PSA) Test. Online:, 2017
  2. National Cancer Institute. Prostate-Specific Antigen (PSA) Test. Online:, 2017