Masturbation is not bad for you. It’s a normal part of human sexuality that most people engage in at some point, and there is no credible medical evidence that it causes lasting physical or psychological harm. What it can do, in moderate amounts, is reduce stress, improve sleep, and help you understand your own body. The only time masturbation becomes a problem is when it interferes with your daily life, relationships, or responsibilities.
What Happens in Your Body
During masturbation, your brain releases a mix of chemicals that promote relaxation and pleasure. Dopamine creates feelings of satisfaction and motivation. Oxytocin, sometimes called the bonding hormone, helps lower stress. Sexual excitement also reduces activity in the part of your brain responsible for fear and anxiety, which is why orgasm often feels like a mental reset.
These chemical effects aren’t just fleeting. A study on sleep quality found that solo masturbation significantly improved sleep efficiency and reduced wakefulness after falling asleep, comparable to the benefits of partnered sex. Participants did fall asleep later on nights they masturbated, but the quality of sleep they got was measurably better.
The Myths That Won’t Die
No, masturbation does not cause hair loss. This claim usually rests on the idea that ejaculation raises testosterone and, by extension, a hormone called DHT that contributes to male pattern baldness. There is no evidence supporting this chain of events. In fact, one study found that testosterone levels actually increased after three weeks of abstaining from ejaculation, which is the opposite of what the myth predicts.
Masturbation also does not cause blindness, acne, infertility, impotence, or hair growth on your palms. These are old cultural myths with zero scientific backing. If you’ve encountered claims like these online, they are not supported by any medical research.
Potential Benefits for Sexual Health
Masturbation can actually serve as a useful tool for understanding and improving your sexual response. A large multinational study of over 4,200 men found that sexual function was consistently less impaired during masturbation than during partnered sex, across all three problems studied: erectile dysfunction, premature ejaculation, and delayed ejaculation. Researchers noted that incorporating what someone learns about their own response during masturbation into couples therapy could help improve partnered sexual experiences.
For people with a prostate, there’s an additional benefit worth knowing about. A major Harvard study found that ejaculating more than 20 times per month reduced prostate cancer risk by about 20% compared to ejaculating four to seven times per month. This held true for men in both their 20s and 40s. The mechanism isn’t fully understood, but the association is strong enough that researchers take it seriously.
When It Might Affect Your Relationship
The relationship between solo masturbation and relationship satisfaction is more complicated than a simple good-or-bad answer, and it differs between men and women. A systematic review of the research found that 71% of studies on men showed a negative association between masturbation frequency and sexual satisfaction with a partner. For women, 40% of studies found no relationship at all, 33% found a negative one, and 27% found a positive one.
This doesn’t mean masturbation damages relationships. Researchers describe two patterns. In the “compensatory” pattern, more common in men, people masturbate more when their partnered sex life is already unsatisfying. Masturbation fills a gap rather than creating one. In the “complementary” pattern, more common in women, masturbation and partnered sex reinforce each other: people who are more sexually active in general tend to do both more often. The takeaway is that if you notice your solo habits replacing intimacy with a partner rather than supplementing it, that’s worth paying attention to.
Physical Side Effects to Know About
The physical risks of masturbation are minor and temporary. Masturbating too roughly can cause chafing or tender skin, and doing it too aggressively over time can reduce genital sensitivity. This is sometimes informally called “death grip” in men, where gripping too tightly during masturbation makes it harder to reach orgasm during partnered sex. The Cleveland Clinic notes that any minor physical effects typically heal within a day or two, and sensitivity generally returns once you ease up on intensity or frequency.
When Masturbation Becomes a Problem
The line between a healthy habit and a problematic one isn’t about frequency. There is no magic number of times per week that crosses into “too much.” Instead, the diagnostic criteria for compulsive sexual behavior focus on control and consequences. A pattern becomes clinically significant when sexual urges repeatedly override your ability to manage them over a period of six months or more, and when the behavior causes real problems: neglecting your health, failing at work or school, damaging relationships, or continuing despite getting little satisfaction from it.
One important distinction in the diagnostic criteria: feeling guilty about masturbation purely because of moral or religious beliefs does not, on its own, qualify as a disorder. Distress rooted entirely in disapproval of the behavior, rather than in its actual consequences, is specifically excluded. If your only concern is that masturbation feels “wrong” but it isn’t disrupting your life, that’s a values question, not a medical one.
How Common It Is
Masturbation is extremely common across all age groups. In nationally representative U.S. data, about 74% of males and 48% of females reported having masturbated. Among 17-year-old males, 80% reported ever masturbating, and about 68% had done so in the past month. For 17-year-old females, 58% reported having masturbated at least once. These numbers increase further into adulthood. Whatever your frequency, you are almost certainly within the range of normal human behavior.