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Doctors usually diagnose BPH by reviewing a patient’s medical and family history, asking about symptoms, and conducting a physical exam. Tests used to determine a diagnosis of BPH may include:

Digital rectal exam (helps doctor determine the size, texture, and shape of prostate and helps rule out prostate cancer).
Transrectal ultrasound (uses imaging to rule out prostate cancer).
Urine tests (to rule out urinary infection).
Prostate-specific antigen test (a test that measures blood levels of PSA, but is unreliable as a definitive screening test). A positive reading indicates the presence of benign conditions such as BPH, while high test results may suggest the presence of prostate cancer.

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