About 78% of adults worldwide masturbate, based on a survey spanning 18 countries. That number is higher than most people guess. Respondents in the same survey underestimated how many people do it by an average of 11 percentage points. In short, it’s one of the most common sexual behaviors there is, cutting across age, gender, and culture.
How Common It Is by Gender
Men report higher rates across nearly every study. Among American men, 92% say they’ve masturbated, compared to 76% of American women. British men top the charts at 96%, with British women at 78%. German men come in at 93%, German women at 76%. These numbers come from a large international survey, and the pattern holds across all 18 countries studied: men consistently report higher rates, though the gap narrows in countries with more open attitudes toward sexuality.
A German study looking specifically at women found that 94.5% had masturbated at least once in their lifetime. That’s notably higher than the global survey figures, likely because anonymous clinical surveys tend to capture more honest answers. The takeaway: the real numbers for women are probably higher than what most surveys report, since stigma still affects how openly people discuss it.
How Often People Do It
Frequency varies widely, and there’s no “normal” number. Among men aged 18 to 59, about 25% masturbate a few times per month to once a week. Roughly 20% do it two to three times per week, and under 20% report more than four times a week. That leaves a sizable group who do it less than monthly or not at all.
Women’s frequency patterns look surprisingly similar to men’s once you filter for those who do it regularly. In the German women’s study, 26.8% reported masturbating two or three times a week, and another 26.3% did so about once a week. So for both men and women who masturbate regularly, a few times a week is the most common range.
When It Typically Starts
Most people begin masturbating in their mid-teens. The average starting age is 15.2 in the United States, 15.3 in the UK, and 15.8 in Germany. Among 14-year-olds in the U.S., 63% of boys and 43% of girls report having masturbated at least once. By age 17, those numbers climb to 80% and 58% respectively. The gender gap exists early but stays relatively stable through adolescence.
Physical Effects on the Body
Orgasm triggers a release of dopamine and oxytocin, two hormones that elevate mood and counteract cortisol, your body’s main stress hormone. That’s why masturbation can act as a natural stress reliever and sleep aid. The hormonal shift after orgasm promotes relaxation, which is why many people find it easier to fall asleep afterward.
For men, there’s a notable long-term finding worth knowing. A study published in European Urology followed men over multiple decades and found that those who ejaculated 21 or more times per month had roughly a 20% lower risk of prostate cancer compared to men who ejaculated four to seven times per month. This held true whether the ejaculations came from sex or masturbation, and the protective effect appeared at both younger ages (20s) and middle age (40s). The researchers described it as “additional evidence of a beneficial role of more frequent ejaculation” in reducing prostate cancer risk, particularly for low-risk forms of the disease.
The Guilt Factor
Despite how common it is, some people feel shame about it. A study of over 4,200 men found that about 8% reported feeling guilty after masturbating. That might sound like a small number, but the consequences for that group were significant: guilt from masturbation was linked to higher rates of depression, anxiety, and general psychological distress. Men who felt guilty also reported more sexual problems, more relationship conflicts, and higher rates of alcohol use compared to men who didn’t carry that guilt.
The guilt itself, not the masturbation, appears to be the problem. Nothing about the physical act causes these issues. Cultural and religious messaging around self-pleasure is what drives the shame for most people, and that shame is what creates downstream psychological effects.
When Frequency Becomes a Problem
There’s no specific number of times per week or month that crosses into “too much.” Mental health professionals don’t agree on a universal threshold, and masturbation frequency alone isn’t a diagnostic criterion for any condition. The question isn’t how often, but whether it’s causing real problems in your life.
The World Health Organization recognizes compulsive sexual behavior as an impulse control disorder, but even that classification is debated among clinicians. The Mayo Clinic frames it simply: compulsive sexual behavior becomes a concern when it causes “serious and damaging problems in life.” That means things like missing work, damaging relationships, or being unable to stop despite wanting to. If masturbation fits into your life without those consequences, frequency is a matter of personal preference, not medical concern.