Can ejaculating affect your PSA?

How Ejaculation Can Impact Your PSA Test Results

Men undergoing a prostate-specific antigen (PSA) test are often unaware that something as routine as ejaculation could influence their results. The truth is, recent sexual activity—including masturbation or intercourse—can cause a noticeable rise in PSA levels, especially in men aged 49 to 79.

This increase isn’t just minor—it can be significant enough to skew test results and potentially lead to unnecessary concern or further testing. Research shows that PSA levels can remain elevated for up to 48 hours after ejaculation. The effect tends to be more pronounced in men who already have higher baseline PSA levels or are further along in age. PSA is a protein produced by the prostate gland, and while elevated levels can sometimes signal prostate issues like inflammation, enlargement, or even cancer, temporary spikes due to ejaculation don't reflect actual disease progression. That’s why doctors often recommend avoiding ejaculation for at least two days before a PSA blood test. Skipping sexual activity for two days is a small step that can lead to more accurate results and fewer false alarms. It’s a simple precaution, but one that makes a real difference in ensuring your PSA reading reflects your true prostate health—not a temporary fluctuation. So if you're scheduled for a PSA test, keep this in mind: timing matters. A brief pause in sexual activity could prevent a cascade of unnecessary follow-ups and provide a clearer picture of your prostate's status. For men in their 50s and beyond, staying proactive about prostate health means paying attention not just to symptoms, but to how and when tests are taken. A little awareness goes a long way.