Updated: 5 October 2026

Correction: The previous article treated associations and possible mechanisms as evidence of disease prevention. Its claims about boosting immunity, preventing heart disease and preventing erectile dysfunction have been removed.

General information is different from treatment

Masturbation is generally considered a normal sexual activity. That does not establish it as a treatment for an illness. NHS service information discusses common questions about it.

What a study can and cannot show

An association between a behaviour and a health outcome does not prove that the behaviour caused the outcome. Participants may differ in age, existing conditions or other habits. A short-lived change in a hormone or immune measurement is also different from demonstrating fewer infections or better long-term health.

When reading a headline, check what outcome was measured and whether the research tested a treatment or observed a population. Avoid converting a study's result into a universal recommendation.

When symptoms need assessment

Persistent erectile difficulties have multiple possible causes. NIDDK's guide explains why symptoms should not automatically be attributed to a single habit. Seek professional advice for pain, persistent symptoms or distress rather than relying on this article for a diagnosis.