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Ejaculation and orgasm are separable physiological responses, with the exact neural trigger not fully settled.
Laboratory studies define the female orgasm using a range of physiological markers—vaginal blood flow/engorgement, pelvic and uterine muscle contractions, and neuroendocrine changes such as prolactin ...
Objective physiological markers that cluster around female orgasm include rhythmic increases in pelvic and anal EMG activity, correlated cardiovascular changes (especially systolic blood pressure and ...
Male physical features that research links to women's reported orgasm frequency and timing include markers of attractiveness, facial masculinity and symmetry, and broad masculine cues such as shoulder...
Physical male traits that show any measurable association with female orgasm are few and indirect: perceived male attractiveness and genetic compatibility have been linked to higher reported female or...
Prostate stimulation often produces orgasms that users and several clinical summaries describe as more diffuse and sometimes non-ejaculatory, and these experiences are widely reported to be followed b...
Magnetic resonance imaging (MRI) studies of coitus show reproducible anatomic patterns of penile contact—most commonly preferential contact with the anterior vaginal wall and anterior fornix in face‑t...
Prostate stimulation can produce orgasms that often occur without traditional semen ejaculation—commonly called non‑ejaculatory or “dry” orgasms—and many clinicians and sex educators describe these ex...