Masturbation is the self-stimulation of your genitals or other sensitive areas of your body for sexual arousal or pleasure. It can involve hands, fingers, sex toys, or other objects, and it may include touching, rubbing, or massaging the genitals or other erogenous zones like the nipples. It is a normal part of human sexuality practiced by people of all ages and genders.
How Common Is It?
Masturbation is extremely common. Data from the 2021 National Survey of Sexual Wellbeing, a nationally representative U.S. survey of over 3,700 adults, found that about 83% of people have masturbated at some point in their lives. Roughly 48% reported doing so in the past month alone.
There are notable differences between men and women. About 60% of men reported masturbating in the past month compared to 37% of women. Around 36% of men masturbated at least once a week, while about 9% of women did the same. Nearly a quarter of women reported never having masturbated, compared to about 10% of men. None of these numbers represent a “right” amount. Frequency varies widely and depends on individual sex drive, relationship status, age, and personal preference.
What Happens in Your Body
When you masturbate, your body goes through the same basic arousal cycle it would during partnered sex. Blood flow increases to the genitals, heart rate and breathing speed up, and muscle tension builds. If you reach orgasm, the body releases a cascade of feel-good chemicals, including dopamine (which creates a sense of reward and pleasure) and oxytocin (which promotes relaxation). One small study found that masturbation to orgasm also triggers the release of a natural compound in the body’s endocannabinoid system, which plays a role in mood regulation and relaxation.
Cortisol, the body’s primary stress hormone, does not appear to change significantly during or after masturbation based on available research. So while orgasm does produce a wave of pleasurable neurochemistry, the stress-relief effect people report likely comes from the general relaxation and mood boost rather than a direct drop in stress hormones.
Effects on Sleep
Many people masturbate before bed to help them fall asleep, and the perception that it works is widespread. A study published in the Journal of Sleep Research found that both men and women perceive masturbation with orgasm to improve how quickly they fall asleep and how well they sleep overall. However, when researchers tracked actual sleep data through daily diaries, only partnered sex with orgasm showed a measurable improvement in sleep quality. Masturbation, even with orgasm, did not produce a statistically significant change in sleep timing or quality in the diary data. That doesn’t mean it can’t help you personally, but the objective evidence is less clear-cut than the subjective feeling.
Role in Sexual Self-Discovery
Masturbation is one of the primary ways people learn what feels good to them sexually. Understanding your own body, what types of touch you respond to, and what brings you to orgasm makes it easier to communicate those preferences to a partner. For this reason, sex therapists sometimes incorporate masturbation into treatment plans for people dealing with difficulty reaching orgasm, low desire, or pain during sex.
Research published in 2024 explored how women use masturbation as a coping strategy, finding that it can serve as a form of self-care and a resource for managing psychological distress and even physical pain. Clinicians working in sexual health, mindfulness therapy, and pain management are increasingly recognizing it as part of a holistic approach to well-being.
Common Concerns
Masturbation does not cause blindness, hair loss, infertility, or physical weakness. These are long-standing myths with no basis in medical evidence. It does not reduce your ability to enjoy partnered sex, and it does not indicate that something is wrong with your relationship if you masturbate while in one.
Physically, the main risks are minor. Vigorous or rough stimulation can cause skin irritation or soreness, which typically resolves on its own. Using unclean objects or sharing sex toys without proper hygiene can introduce bacteria, so keeping things clean is practical common sense.
When It Becomes a Problem
Masturbation itself is not harmful, but in rare cases the behavior can become compulsive. The World Health Organization’s diagnostic framework (ICD-11) recognizes compulsive sexual behavior disorder, which applies when someone repeatedly fails to control sexual impulses over a period of six months or more, leading to real consequences in their life. The key features include:
- Central preoccupation: Sexual behavior takes over to the point of neglecting health, responsibilities, or other interests.
- Repeated failed attempts to cut back: You’ve genuinely tried to reduce the behavior multiple times without success.
- Continuing despite consequences: The behavior persists even after causing relationship problems, job issues, or health impacts.
- No satisfaction: You keep engaging in the behavior even though it no longer brings pleasure.
Importantly, having a high sex drive or masturbating frequently does not by itself qualify as a disorder. The diagnostic guidelines specifically note that high levels of sexual interest, including the frequent masturbation common among adolescents, should not be diagnosed as compulsive behavior even when it causes some embarrassment or guilt. Feeling bad about masturbation because of moral or cultural beliefs is also not the same as having a clinical condition. The diagnosis requires genuine loss of control combined with meaningful harm to your daily functioning.