Does Ejaculating Lower Your PSA?

No, ejaculating does not lower your PSA; on the contrary, it typically causes a temporary increase in prostate-specific antigen (PSA) levels.

The Impact of Ejaculation on PSA Levels

Ejaculation can significantly influence serum PSA concentration. Research indicates that PSA levels tend to rise after ejaculation. For instance, a study conducted on men between 49 and 79 years old observed that the serum PSA concentration increased in a substantial majority (87%) of participants following ejaculation. These increases, both in absolute value and relative change, were statistically significant when measured one, six, and even 24 hours after the event. This temporary elevation means that recent ejaculation can lead to a higher PSA reading than your baseline level.

Why Does PSA Increase After Ejaculation?

PSA is a protein primarily produced by the prostate gland. Its main function is to liquefy semen, aiding sperm motility. During ejaculation, the prostate gland contracts, which can lead to the release of more PSA into the bloodstream, thus temporarily elevating its measured level.

Practical Considerations Before a PSA Test

Given that ejaculation can temporarily raise PSA levels, it's important to consider this factor when preparing for a PSA blood test. An artificially elevated PSA reading might lead to unnecessary concern or further investigations.

Preparing for an Accurate PSA Reading

To ensure the most accurate PSA test result, healthcare providers often recommend specific preparations:

• Abstain from Ejaculation: It is generally advised to avoid any form of ejaculation (sexual intercourse, masturbation, or nocturnal emission) for at least 24 to 48 hours, and ideally up to 2-3 days, before your PSA blood test. Your doctor will provide specific guidance.
• Avoid Strenuous Exercise: Vigorous physical activities, especially those that involve the perineal area (like cycling), can also temporarily increase PSA levels. It's often recommended to avoid such activities for a day or two before the test.
• Inform Your Doctor: Always disclose any recent activities that might affect your PSA levels, such as a recent urinary tract infection, prostate biopsy, or catheterization, as these can also cause an elevation.

Understanding the various factors that can influence PSA levels is crucial for interpreting test results correctly and making informed health decisions.

Factors Influencing PSA Levels

Several factors can affect PSA levels, leading to fluctuations that are not necessarily indicative of prostate cancer.