Prostate-specific antigen (PSA) is a protein that may indicate various prostate disorders, such as infections, benign growths, or prostate cancer. PSA levels can be higher in prostate cancer, with levels above 6.8 ng/mL being especially concerning.
A PSA above 10 ng/mL usually leads to a biopsy, while levels below 2.00 ng/mL are less likely to be related to cancer. Women can also produce PSA, and levels can increase due to other medical conditions.
It's important to note that a low PSA doesn't completely rule out prostate cancer, and any increase in PSA levels after prostate surgery should be investigated.
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