What is considered a normal PSA level in ng/ml?

A normal Prostate-Specific Antigen (PSA) level is commonly considered to be 4 ng/ml or lower. This value serves as a crucial reference point for healthcare professionals when assessing potential prostate health issues. Levels above this threshold can indicate the possibility of prostate conditions or diseases, including benign prostatic hyperplasia or prostate cancer.

Option B, which indicates a PSA level of 4 ng/ml, aligns with established medical guidelines regarding what is typically classified as normal. While values may sometimes vary slightly based on individual factors or lab reference ranges, 4 ng/ml is widely recognized as the upper limit of the normal range. Higher results necessitate further investigation and evaluation by healthcare providers to determine the underlying cause.