Index/Organizations/International Society for Sexual Medicine

International Society for Sexual Medicine

Fact-Checks

15 results
Jan 17, 2026
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maximum amount of semen in one ejaculation'

Published clinical guidance and encyclopedia entries place the typical human ejaculate between roughly 1.25–5 milliliters, but documented extremes in the literature and summaries push the conceivable ...

Nov 23, 2025
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MEN IN 90 S REDUCED INTENSITY ORGASIMS

Men can experience reduced orgasm intensity as a normal part of aging, hormonal change, or behavioral factors, and in clinical terms diminished intensity—or absent/delayed orgasms—is described as anor...

Dec 4, 2025
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Can prostate stimulation change ejaculation timing or lead to orgasm without ejaculation (dry orgasm)?

Prostate stimulation can both change the timing of ejaculation and produce orgasms without the typical semen release — commonly called “dry” or non‑ejaculatory orgasms — according to clinical reviews ...

Nov 15, 2025

Common myths about penis size and aging

Reporting and medical reviews disagree about whether penises truly “shrink” with age or whether appearance and function change for other reasons: several clinician-facing outlets and urology groups sa...

Nov 16, 2025

Do sexual satisfaction studies link penis size (length or girth) with positive or negative experiences for women?

Research is mixed: some reviews and experiments find a measurable link between penile dimensions and aspects of women's sexual pleasure (for example, an 18% drop in pleasure when penetration depth was...

Jan 14, 2026

Can penis size influence the quality of sexual experiences for women?

Yes — penis size can influence some women's sexual experiences, but the effect is partial, context-dependent, and smaller than popular narratives suggest; multiple peer-reviewed studies report both ph...

Nov 26, 2025

Can pelvic floor exercises increase orgasm intensity in men and women without triggering ejaculation?

Clinical and review literature shows a mixed picture: many clinical trials found no clear increase in orgasm frequency after pelvic floor muscle training, while recent reviews and professional organiz...

Jan 19, 2026

How is premature ejaculation clinically defined and treated?

Premature ejaculation (PE) is clinically described as ejaculation that occurs sooner than desired and causes distress for the patient and/or partner, with consensus definitions emphasizing timing (oft...

Jan 14, 2026

How does perception of ideal penis size differ from actual partner satisfaction and outcomes in sexual relationships?

Cultural perceptions exaggerate the importance of penis size, producing a mismatch: many men are dissatisfied with their own size while most partners report being satisfied and prioritize relationship...

Jan 9, 2026

What is considered a big load for cum?

What counts as a “big load” is measurable: most men ejaculate roughly 1.25–5 mL (about ¼–1 teaspoon) and medical definitions flag volumes above roughly 6–6.3 mL as unusually large or “hyperspermia,” w...

Jan 1, 2026

How often have women in the UK received oral sex in the last year?

Available surveys and secondary reports indicate that a clear majority of adult women in the UK report having received or engaged in oral sex within a 12‑month window, but estimates vary by age group ...

Jan 1, 2026

What percentage of women have given oral sex to their male partners in the last year?

Available surveys show that most U.S. women report ever having performed oral sex, but the sources provided do not supply a single, recent national percentage for women who gave oral sex to male partn...

Dec 5, 2025

How does sexual experience or frequency influence likelihood of female ejaculation?

Available research on female ejaculation is sparse and highly variable: some small studies report prevalence rates as high as ~69% in specific groups (sex workers) while broader reviews note the pheno...

Nov 17, 2025

How do age-related changes affect average erect and flaccid penis size over a lifespan?

Available reporting shows disagreement: several clinical and popular outlets say perceived penile shortening with age is usually due to factors such as fat at the pubic base, reduced blood flow, Peyro...

Oct 15, 2025

What are the most common factors that influence sex duration?

Sex duration is shaped by an interplay of , with research indicating that physiology (including medical conditions and neuroendocrine factors), mental state and attitudes, and the types of sexual prac...