AbstractThis case study provides objective evidence supporting the hypothesis that female ejaculation, a partial, infertile homologue of male ejaculation, exists. A karyotypically normal, multiparous woman suffered for a decade with urinary stress incontinence. During that time she had learned to inhibit an orgastic response which led to bedwetting. Although the liquid produced did not appear to be urine, she falsely concluded that her orgasmic expulsion was a manifestation of urinary incontinence. Using feedback from a Vaginal Myograph, she learned to do Kegel exercises properly, and the urinary stress incontinence soon disappeared. Around this time she became aware of the concept of female ejaculation and its possible association with an erotically sensitive area that could be stimulated through her anterior vaginal wall. Stimulation of this area, the“Grafenberg spot,”produced what she described as orgasm which felt“deeper”than orgasms in response to vulvar stimulation. Such an orgasm was often accompanied by expulsion of liquid from the urethra. Chemical analysis indicated that the expulsion was not urine. It contained prostatic acid phosphatase, an enzyme characteristically found in prostatic secretion.