Prostate-specific antigens (PSAs) are proteins made by the prostate cells to help keep semen liquified so sperm can swim. Both cancerous and non-cancerous cells make PSA but, cancerous cells usually produce more, so elevated PSA levels in a blood test may indicate the presence of prostate cancer.
What are the causes of an elevated PSA?
Although prostate cancer may be a cause for elevated PSA blood levels, it does not always mean cancer is present. Prostatitis (infection/inflammation of the prostate) and Benign Prostatic Hyperplasia (BPH-enlarged prostate) can also cause higher-than-normal PSA levels. It is important to have a digital rectal exam (DRE) performed by our specialists to help detect prostate cancer.