PSA levels can be elevated for reasons other than cancer, such as an enlarged or inflamed prostate. False positive and false negative PSA test results are possible. The American Cancer Society does ...

Biomarker lab tests typically take a biological sample, like blood, to evaluate certain biomarkers, which are measurable indicators of your health. Whether you're checking your hormones, thyroid, or ...

Mohana Ravindranath is a freelance health, science, and tech journalist and a 2025 Association for Health Care Journalists fellow. She was previously a Bay Area health tech correspondent for STAT.

News that former President Joseph Biden has advanced prostate cancer has revived long-standing questions about the benefits versus the harms of a blood test that screens for the most commonly ...