Masturbation is not bad for you in any medical sense. No peer-reviewed evidence links ordinary masturbation to physical harm, organ damage, infertility, or mental illness. The belief that it is dangerous has a surprisingly specific history rooted in 18th- and 19th-century medicine, and many of those ideas still circulate in updated packaging. That does not mean the topic is simple: frequency, context, compulsivity, and the guilt a person carries about the act all shape whether the experience is neutral, positive, or genuinely distressing.
Where the Idea That Masturbation Is Harmful Came From
The notion that masturbation causes disease is not ancient folklore. It was a medical theory, taken seriously by physicians for roughly two centuries. In the 1700s, masturbation was reframed from a moral failing into a supposed cause of physical illness, and by the 1800s, psychiatrists believed it could trigger a specific type of insanity with its own distinct progression.1Psychological Medicine. Masturbatory insanity: the history of an idea, revisited Treatments ranged from dietary restrictions to devices designed to prevent genital touching. The medical establishment eventually abandoned these claims as no supporting evidence materialized, but the cultural residue persists. When someone today says masturbation “drains your energy” or “weakens your body,” they are echoing a discredited 18th-century medical framework, not modern science.
What Actually Happens in Your Body
During orgasm, the brain releases a flood of opioids across multiple regions, producing intense pleasure and a temporary drop in pain sensitivity. At the same time, dopamine transmission in key motivational circuits drops abruptly, which is part of why you feel relaxed and uninterested in continuing immediately afterward.2Sexual Medicine Reviews. Orgasms, sexual pleasure, and opioid reward mechanisms This is the same basic reward cycle that occurs during partnered sex. The body does not distinguish between an orgasm reached alone and one reached with another person at the neurochemical level, though one measurable difference does exist: the prolactin surge after intercourse is roughly four times larger than after masturbation, which researchers interpret as reflecting a difference in perceived physiological satisfaction rather than any harm from the solo version.3PubMed. The post-orgasmic prolactin increase following intercourse is greater than following masturbation and suggests greater satiety
Prolactin is the hormone behind the “I’m done” feeling. A smaller prolactin response after masturbation simply means the refractory period tends to be shorter and the sense of deep satiation is less pronounced. It is not evidence of damage. If anything, it explains why some people find partnered sex more satisfying without implying that masturbation is deficient or harmful.
The Testosterone Question
One of the most persistent claims in online wellness spaces is that masturbation lowers testosterone, and that abstaining will raise it to performance-enhancing levels. The research tells a more boring story. A small study of 28 men tracked daily testosterone during abstinence after ejaculation and found that levels barely changed from day two through day five. On the seventh day, there was a clear spike to about 146% of baseline, but testosterone returned to normal afterward with no ongoing elevation during continued abstinence.4PubMed. Periodic changes in serum testosterone levels after ejaculation in men A separate study confirmed that while a three-week abstinence period did produce somewhat elevated testosterone levels, orgasm itself did not alter testosterone acutely.5PubMed. Endocrine response to masturbation-induced orgasm in healthy men following a 3-week sexual abstinence
So ejaculation does trigger a temporary hormonal rhythm, but it is exactly that: temporary. There is no evidence of a cumulative testosterone decline from regular masturbation, and the day-seven spike is a one-time blip, not a sustained elevation that would translate into muscle growth, athletic performance, or any of the other benefits abstinence advocates claim. The people telling you that “semen retention” builds testosterone are selectively citing the spike while ignoring that it vanishes on its own whether you ejaculate again or not.
Potential Prostate Health Benefits
If anything, the epidemiological evidence tilts in masturbation’s favor for one specific health outcome. A large prospective study following tens of thousands of men found that those who ejaculated 21 or more times per month had a roughly 33% lower risk of prostate cancer compared with men who ejaculated four to seven times per month, based on the previous year’s frequency.6JAMA. Ejaculation Frequency and Subsequent Risk of Prostate Cancer An updated analysis with an additional decade of follow-up confirmed the association, finding about a 19-22% reduction in risk for high-frequency ejaculators across different age windows, with the effect driven primarily by low-risk disease.7PubMed Central. Ejaculation Frequency and Risk of Prostate Cancer: Updated Results with an Additional Decade of Follow-up The mechanism is not fully understood, though hypotheses include the clearance of potentially carcinogenic secretions from the prostate and reduced intraprostatic pressure.
This does not mean masturbation is a prostate cancer prevention strategy you should prescribe yourself. Observational data cannot prove causation, and confounders are always possible. But it does flatly contradict the idea that frequent ejaculation harms the prostate.
When Masturbation Becomes a Problem
The honest caveat is that masturbation can become problematic when it is compulsive. Compulsive sexual behavior disorder, recognized in the International Classification of Diseases, involves a persistent failure to control intense, repetitive sexual urges that lead to real distress or impairment in daily life. In people with this condition, excessive masturbation is one of the common presentations alongside problematic pornography use and other sexual behaviors that feel out of control.8Nature Reviews Urology. An integrated model to assess and treat compulsive sexual behaviour disorder
The key distinction here is between frequency and control. Masturbating daily, or even more often, is not inherently compulsive. Compulsivity is defined by the inability to stop despite wanting to, by the behavior disrupting work or relationships, and by significant personal distress. Someone who masturbates often and feels fine about it does not meet the criteria. Someone who masturbates less often but is consumed by shame, unable to focus on other responsibilities, and repeatedly fails to reduce the behavior despite trying hard might. The disorder is about the relationship to the behavior, not the behavior’s frequency.
Guilt, Shame, and Moral Incongruence
Here is where the real harm often lives, and it is not caused by masturbation itself. A growing body of research shows that many people who report distress about their sexual behavior are not actually out of control. Instead, their distress stems from a mismatch between their behavior and their moral or religious values. Researchers call this moral incongruence, and the ICD-11 diagnosis for compulsive sexual behavior explicitly rules out distress that is solely the result of moral judgments.9PubMed Central. Compulsive sexual behavior, religiosity, and spirituality: A systematic review
This matters because a person raised to believe masturbation is sinful or destructive may feel crushing guilt every time they do it, interpret that guilt as evidence that something is wrong with them, and then seek treatment for an “addiction” that does not exist in any diagnostic manual. The distress is real, but the cause is the belief system, not the sexual behavior. Purity culture beliefs, for instance, independently predict sexual shame in both men and women, and childhood exposure to these beliefs is a significant predictor of shame in men even into adulthood.10Taylor & Francis Online (The Journal of Sex Research). Being Pure and Being Ashamed: Purity Culture and Sexual Shame Among Survivors of Nonconsensual Sexual Experiences The takeaway is blunt: for a large number of people who feel bad about masturbating, the problem is not masturbation. The problem is what they were taught about it.
Masturbation, Pornography, and Erectile Function
A common claim online is that masturbation causes erectile dysfunction. The evidence suggests that this conflates two different things. A large international survey of young men found that problematic pornography consumption was associated with a higher probability of erectile difficulties, but masturbation frequency by itself was not a significant factor after controlling for other variables.11PubMed Central. Associations Between Online Pornography Consumption and Sexual Dysfunction in Young Men: Multivariate Analysis Based on an International Web-Based Survey A separate study of young men with psychogenic erectile dysfunction found a strong negative correlation between pornography use frequency and erectile function scores, with the relationship partially mediated by how it affected the couple’s relationship quality rather than any direct physical mechanism.12International Journal of Impotence Research. Effect of internet pornography use frequency on psychogenic erectile dysfunction severity in young Turkish men: the mediating role of dyadic adjustment
The distinction matters practically. If you are experiencing erectile difficulties during partnered sex, the culprit is more likely to be how you use pornography than the fact that you masturbate. A review paper has proposed that high-speed internet pornography may alter the brain’s motivational pathways in ways that make real-world sexual encounters less arousing by comparison, particularly for younger men who grew up with easy access to it.13PubMed Central. Is Internet Pornography Causing Sexual Dysfunctions? A Review with Clinical Reports Reducing pornography use while continuing to masturbate without it is a very different intervention from swearing off all sexual release, and one that is better supported by the available data.
Masturbation and Relationships
One study did find that women’s masturbation frequency was inversely associated with both their own sexual satisfaction and their dyadic adjustment with a partner, even after controlling for other sexual behaviors.14The Journal of Sexual Medicine. Sexual Satisfaction, Sexual Compatibility, and Relationship Adjustment in Couples Before reading too much into that, it is worth noting the direction of causation is unclear. Women who are less satisfied with their partnered sex life may naturally turn to masturbation more often, rather than masturbation somehow eroding the relationship. Cross-sectional data cannot tell you which came first. The same study found that vaginal orgasm consistency and frequency of partner genital stimulation were strong positive predictors of satisfaction, suggesting that the quality of the partnered sexual experience itself is what drives satisfaction most powerfully.
For couples, the practical question is usually whether one partner’s solo habits are displacing shared intimacy or creating feelings of rejection. That is a relationship communication issue, not a medical one.
Masturbation as Self-Care
On the positive side, research with women has found that masturbation functions as a reliable coping and self-care strategy, helping to induce positive emotional states like relaxation and happiness.15PubMed Central. Exploring the Role of Masturbation as a Coping Strategy in Women This is not surprising given what we know about the opioid and dopamine dynamics described earlier. Orgasm relieves tension, promotes sleep, and temporarily reduces pain sensitivity. For people dealing with stress, insomnia, menstrual cramps, or generalized anxiety, masturbation is a free, private, and side-effect-free tool. Framing it exclusively as a vice ignores a real and well-documented physiological benefit.
The NoFap Movement and Its Unintended Consequences
NoFap and the broader “Reboot” movement promote abstinence from masturbation and pornography as a cure for low energy, brain fog, social anxiety, and erectile dysfunction. The movement has attracted millions of followers, but the research on its effects is not encouraging. A preregistered survey found that participants who experienced a “relapse” (meaning they masturbated after trying to abstain) reported feeling shameful, worthless, and sad, with some reporting suicidal thoughts. Greater engagement in NoFap online forums was associated with worse erectile dysfunction symptoms, more depression and anxiety, and increased sex-negative attitudes.16Sexualities. Iatrogenic effects of Reboot/NoFap on public health: A preregistered survey study
The forums themselves also showed significant problems. Roughly three-quarters of participants reported encountering misogynistic content, about half reported bullying, more than 40% reported anti-LGBT messaging, and nearly a quarter reported posts instructing followers to harm or kill themselves.16Sexualities. Iatrogenic effects of Reboot/NoFap on public health: A preregistered survey study Separate qualitative research has observed that men in these communities construct an antagonistic narrative around pornography and masturbation, framing abstinence in terms of masculine willpower and treating any sexual release as a personal defeat.17Sexualities. Erotic habitus and collapsed masculinity in male-dominated spaces: The case of the no Fap relapse spaces
The irony is hard to miss. A movement that claims to reduce distress around sexual behavior appears to create more of it, largely by recasting an ordinary behavior as a catastrophic failure. If you are genuinely struggling with compulsive behavior that disrupts your life, evidence-based therapy with a qualified clinician is a far better path than an internet community built on shame and willpower.
Children and Self-Touching
Parents sometimes panic when young children touch their genitals. Pediatric literature consistently treats childhood genital self-stimulation as a normal part of development. Sometimes called “childhood gratification syndrome” in clinical settings, these behaviors are typically nonpathological pleasure-seeking habits. A clinical review spanning five decades concluded that careful history-taking, reassurance of parents, and behavioral guidance are the appropriate responses, not punishment or alarm.18PubMed Central. Childhood gratification syndrome: Demystifying the clinical conundrum with a narrative literature review of the past 5 decades A separate review emphasized that normal psychosexual development, environmental context, and individual temperament should all be considered when assessing these behaviors in children.19PubMed. Practical approach to childhood masturbation–a review Shaming a child for self-touching is more likely to create lasting sexual anxiety than to prevent any harm, because there is no harm to prevent.
Why Other Primates Do It Too
If masturbation were genuinely wasteful or harmful, you would expect natural selection to have eliminated it long ago. Instead, it is widespread across primates. A large comparative analysis of nearly 300 primate species found strong evidence that male masturbation coevolved with both multi-partner mating systems and pathogen exposure, supporting two functional hypotheses: that masturbation helps males compete reproductively by flushing out old or low-quality sperm before mating, and that it may reduce sexually transmitted infections by clearing the reproductive tract after copulation.20PubMed Central. The evolution of masturbation is associated with postcopulatory selection and pathogen avoidance in primates Research on Japanese macaques specifically tested the “sperm freshness” hypothesis and found that masturbation was more common in species with multi-male breeding systems where sperm competition is high, which contradicts the intuition that ejaculating outside of mating is simply wasteful.21LMU Munich. Sperm Competition and the Function of Masturbation in Japanese Macaques (Macaca fuscata)
None of this means humans masturbate “because evolution wants them to.” But it does dismantle the folk theory that self-stimulation is some aberration or modern corruption. It is an ancient behavior with plausible adaptive functions, conserved across a wide branch of the primate family tree.